Please help with finance questions and show your work! Thanks!

1)If you borrow $100 today and repay with 6% simple interest one year from now, which of the following would be a correct time line entry?

• A. -$100 at year zero.
• B. -$106 at year one.
• C. $106 at year one.
• D. $100atyearone.

2)You invest $600 an an annual rate of 7% for fifteen years. How much more interest would you earn in year 11 with compound vs. simple interest and for the whole 15 years?

• A. 82.62;82.62452.42
• B. 42.00;42.001,230.00
• C. $40.62; 425.42
• D. 1,214.54;1214.54101.56

3)You plan to buy a new car when you graduate in 2 years. The car you want currently costs $25,000 and car prices are expected to increase at an annual rate of 4% per year. What will your car cost by the time you graduate? Suppose you wait another 3 years after graduation to make your purchase?

• A. 25,400.;25400.27,400
• B. 26,854;2685429,668
• C. 28,050;2805031,653
• D. 27,040;2704030,416

4)If you can earn 6% per year, how much would you have to invest today to be able to purchase the car in #3 in two years? In five years?

• A. 24,066;2406622,729
• B. 25,060;2506027,550
• C. 22,080;2208024,007
• D. 22,729;2272924,066

5)A widget seller sold 1,035 widgets in 2007 and 687 in 2015. What was the annual rate of sales of widgets over this period?

• A. -6.33%
• B. -4.99%
• C. 4.99%
• D. 6.33%

6)A new CEO promises to increase company sales by 9% per year from its current level of $3,458,613 to a target level of $12 million. How long would it take for the new CEO to achieve his goal?

• A. 8 years
• B. 10 years
• C. 12 years
• D. 14 years

7)If your investment doubles in 6 3/4 years, what approximate annual rate of return would you have earned? If you could earn an annual rate of 7.50%, approximately how long would it take for your investment to double?

• A. 9.60%; 10.67 years
• B. 10.67%; 9.60 years
• C. 13.50%; 9.20 years
• D. 9.20%; 13.50 years