Vincent Trucano can get an ISP account with WorldVu. The standard plan costs $\$ 9.99$ per month and the premiere plan costs $\$ 14.99$ a month. Taxes are $10 \%$.

What is the annual cost of the standard plan for the first year?

What is inflation? Suppose an individual's retirement plan consists of putting $\$ 100$ into a safe. What effect does inflation have on this plan?

If an investment of $P$ dollars grows to $A$ dollars in two years, the annual rate of return on the investment is given by

$$r=\frac{\sqrt{A}-\sqrt{P}}{\sqrt{P}} .$$

What is the rate if an investment of $\$ 50,000$ grows to $\$ 58,320 ?$

A $5000 investment earns 7.2% annual interest, and an$8000 investment earns 5.4%, both compounded annually. How long will it take for the smaller investment to catch up to the larger one?

Investment A offers an 8% return compounded semiannually, and Investment B offers a 7.75% return compounded continuously. Which investment has a higher rate of return over a 4-year period?

For each investment situation, identify (a) the annual interest rate, (b) the length of the investment in years, ( c ) the periodic interest rate, and (d) the number of periods of the investment.

$12 \%$ compounded monthly for $3$ years

What is the Virginia Plan?

For each investment situation, identify (a) the annual interest rate, (b) the length of the investment in years, ( c ) the periodic interest rate, and (d) the number of periods of the investment.

$9 \%$ compounded monthly for $5$ years

If an investment triples in 15 years, what interest rate (compounded continuously) does the investment earn?

You invest $20,000 in a retirement plan. The plan is expected to have an annual return of 12$a_{n}$ available in the plan at the beginning of the nth year. What is the balance of the account at the beginning of the 20 th year?

Why do you think that the city manager plan of government eventually became more popular than the commission plan?

An investment initially worth $1200 grows by$11.2 \%$per year. When will the investment be worth$5000?

You invest $15,000 in a retirement plan. The plan is expected to have an annual return of 9$a_{n}$ available in the plan at the beginning of the nth year. What is the balance of the account at the beginning of the 25 th year?

Use Newton’s method to determine the interest rate if the interest was compounded continuously. Consider a bank investment. The initial investment is $10,000. After 25 years, the investment has tripled to$30,000.