Find the time required for a $1000 investment to (a) double at interest rate r, compounded continuously, and (b) triple at interest rate r, compounded continuously. Round your results to two decimal places.$r = 3.75%$

Suppose you deposit 100 dollars in Account A with a simple interest rate of 3.4 percent, and 300 dollars in Account B with a simple interest rate of 1.8 percent. One year later, you get a bank statement that shows the interest for Account A is 3.40 dollars, and the interest for Account B is 540.00 dollars. What may have been the bank's error?

Find the time required for a $1000 investment to (a) double at interest rate r, compounded continuously, and (b) triple at interest rate r, compounded continuously. Round your results to two decimal places.$r = 2.5%$

Find the simple interest paid to the nearest cent for each loan amount, interest rate, and time. $725, 6.25%, 1 year

Compute the future value of $100 at an 8 percent interest rate 5, 10, and 15 years into the future. What would the future value be over these time horizons if the interest rate were 5 percent?

The bank offered a 0.6% interest rate. Find 0.6% of $1300.

A company issued bonds with a $100,000 face value, a 5-year term, a stated rate of 6%, and a market rate of 7%. Interest is paid annually. What is the amount of interest the bondholders will receive at the end of the year?

The interest rate on a car loan affects the monthly payment. The function that relates the monthly payment for a 5 -year loan (60-month loan) to the monthly interest rate is given by

$$P(x)=\frac{C x}{\left[1-\frac{1}{(x+1)^{60}}\right]}$$

where $x$ is the monthly interest rate (as a decimal), $C$ is the loan amount, and $P(x)$ is the monthly payment.

Simplify the complex fraction.

For the following exercise,

Determine the value of the annuity for the indicated monthly deposit amount, the number of deposits, and the interest rate.

Deposit amount: $\$ 100$; total deposits: $120$ ; interest rate: $10 \%$, compounded semi-annually

For the following exercises, determine the value of the annuity for the indicated monthly deposit amount, the number of deposits, and the interest rate. Deposit amount: $100; total deposits: 120; interest rate: 10%, compounded semi-annually

Find the time required for a $1000 investment to (a) double at interest rate r, compounded continuously, and (b) triple at interest rate r, compounded continuously. Round your results to two decimal places.$r = 7 %$

Bill Rich signed a 180-day note for $1,250. He repaid the loan when due with interest at an annual rate of 12 % using a banker's year.

Tony Colito paid$19.50 in interest on a loan of $2,600 for 1 month. What rate of interest did he pay?

The monthly payment on a $300,000 30 year mortgage at 6% annual interest rate is$1798.65. What is the interest payment for the first month?

True or False? If true, prove it. If false, find the true answer. If you invest $500, an annual rate of interest of 3% yields more money in the first year than a 2.5% continuous rate of interest.