\( \frac{7000 / 3500}{1+3.5 / 100} \frac{0.3019}{0.0350} \) c. Find the time it takes for your investment to triple in the compound interest model when the interest rate is \( 3 \% \).

Determine the effective annual yield for each investment. Then select the better investment. \( 3.06 \% \) compounded monthly; \( 3.07 \% \) compounded annually Click the icon to view some finance formulas. Select the correct choice below and fill in the answer boxes within your choice. (Round to the nearest hundredth as needed.) A. The second investment, \( 3.07 \% \) compounded annually, is the better investment because the effective annual yield for the first investment is investment is \( \square \% \). The first investment, \( 3.06 \% \) compounded monthly, is the better investment because the effective annual yield for the first investment is \( \square \% \) annual yield for the second investment is \( \square \% \).

For the investment situation below, identify the annual interest rate, the length of the investment in years, the periodic interest rate, and the number of periods of the investment. \( 9 \% \) compounded monthly for 3 years (a) the annual interest rate (b) the length of the investment in years (c) the periodic interest rate (d) the number of periods of the investment

25. You own a custom computer software business. You must invest \( \$ 3,255 \) for computer hardware, and spend \( \$ 2.90 \) to buy and package each disk. If each disk sells for \( \$ 13.75 \), write a system of equations and determine how many disks you must sell to break even. 26. The ballpark needs to make at least \( \$ 15,000 \) from ticket sales. The ticket prices are \( \$ 20 \) for

Advice from most financial advisers states to spend no more than \( 28 \% \) of one's gross monthly income for one's mortgage payment, and to spend no more than \( 36 \% \) of one's gross monthly income for one's total monthly debt. Suppose a family has a gross annual income of \( \$ 43,200 \). a. What is the maximum amount the family should spend each month on a mortgage payment? b. What is the maximum amount the family should spend each month for total credit obligations? c. If the family's monthly mortgage payment is \( 80 \% \) of the maximum they can afford, what is the maximum amount they should spend each month for all other debt? a. The maximum monthly mortgage payment should be \( \$ \square \). b. The maximum monthly total credit obligations should be \( \$ \square \). The maximum amount they should spend monthly on all other debt is \( \$ \)

To borrow money, you pawn your guitar. Based on the value of the guitar, the pawnbroker loans you \( \$ 1080 \). One month later, you get the guitar back by paying the pawnbroker \( \$ 1272 \). What annual interest rate did you pay? You will pay a simple interest rate of \( \square \% \) (Round to the nearest whole number as needed.)