13- Total fixed cost = $420. Variable cost/unit = $20 Revenue/unit = $30. What is the breakeven v…

13- Total fixed cost = $420. Variable cost/unit = $20 Revenue/unit = $30.

What is the breakeven volume?

14- John is planning on repaying a debt of $25,000 with a quarterly payment $1,200 for the next 23 quarters and a final payment of “X” dollars at the end of 24-th quarter. If the interest rate is 12% per year, compounded quarterly, what will be John’s final payment?

15- John invested $10,000 into a money market account and took out $2,000 at the end of year 1. He found out at the end of 7 years that the rest of the money in the account grew to a sum of $29,860. What is the annual interest rate John earned in this investment?

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