A second employee of the computer store in Problem 57 is paid a base salary of $3,000 a month plus a 5% commission on all sales during the month. (A) How much must this employee sell in one month to earn a total of$4,000 for the month? (B) Determine the sales level at which both employees receive the same monthly income.$(C)$ If employees can select either of these payment methods, how would you advise an employee to make this selection?

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(-2,5)$ and $(3,5)$

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(1,4)$ and $(0,4)$

The local supermarket rents carpet cleaners for $20 a day. These cleaners use shampoo in a special cartridge that sells for$16 and is available only from the supermarket. A home carpet cleaner can be purchased for $300. Shampoo for the home cleaner is readily available for$9 a bottle. Past experience has shown that it takes two shampoo cartridges to clean the 10 -foot-by-12-foot carpet in your living room with the rented cleaner. Cleaning the same area with the home cleaner will consume three bottles of shampoo. If you buy the home cleaner, how many times must you clean the living-room carpet to make buying cheaper than renting?

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(5,3)$ and $(5,-3)$

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(2,3)$ and $(-3,7)$

Sale prices in a department store are obtained by marking down the retail price by 15%. That is, sale price is obtained by subtracting 15% of the retail price from the retail price. (A) What is the sale price of a hat that has a retail price of $60? (B) What is the retail price of a dress that has a sale price of$136?

Retail and wholesale prices. Retail prices in a department store are obtained by marking up the wholesale price by 40%. That is, retail price is obtained by adding 40% of the wholesale price to the wholesale price. (A) What is the retail price of a suit if the wholesale price is $300? (B) What is the wholesale price of a pair of jeans if the retail price is$77?

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(-2,-1)$ and $(2,-6)$

If the price change in houses parallels the CPI, what would a house valued at $200,000 in 2005 be valued at (to the nearest dollar) in 1960?

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(1,2)$ and $(3,5)$

If the price change of cars parallels the change in the CPI, what would a car sell for (to the nearest dollar) in 2005 if a comparable model sold for $10,000 in 1990 ?

(A) Find the slope of the line that passes through the given points. (B) Find the standard form of the equation of the line. (C) Find the slope-intercept form of the equation of the line. $(2,5)$ and $(5,7)$

Refer to the earlier problem. How should you divide your money between Fund A and Fund B to produce an annual interest income of $30,000?