Reggie invests $12,000, part at 7% annual interest and part at 8.5% annual interest. How much is invested at each rate if Reggie’s total annual interest is$900?

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?

Investigate the difference between compounding annually and simple interest. Round to the nearest cent. Find the interest for a 3-year CD for $5,000 at an interest rate of 2.5%, compounded annually.

What happens to the present value of an annuity as the interest rate increases?

Find each product.

$$0 \left[ \begin{array} { r r } { 5.3 } & { - 7.2 } \\ { - 1.8 } & { 0.6 } \end{array} \right]$$

In this exercise, use the add-on method of calculating interest to find the total interest and the monthly payment.

Investigate the difference between compounding annually and simple interest. Round to the nearest cent. Find the interest for a 6-year CD for $5,000 at an interest rate of 2%, compounded annually.

Is investing $3000 at 6% annual interest and$3000 at 8% annual interest equivalent to investing $6000 (the total of the two principals) at 7% annual interest ( the average of the two interest rates?) Explain.

In this exercise, use the add-on method of calculating interest to find the total interest and the monthly payment.

In this exercise, use the add-on method of calculating interest to find the total interest and the monthly payment.

Find the monthly interest rate $r$ when

$$A P R=13.2$$

You are investing P dollars at an annual interest rate of r, compounded continuously, for t years. Which of the following would result in the highest value of the investment? Explain your reasoning. Double your interest rate.

Ron Kenoly Inc. issued $600,000 of 9%, 10-year bonds on June 30, 2020, for$562,500. This price provided a yield of 10% on the bonds. Interest is payable semiannually on December 31 and June 30. If Kenoly uses the effective-interest method, determine the amount of interest expense to record if financial statements are issued on October 31, 2020.

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 %$