Compute the simple interest earned when the principal, rate, and time of the loan are as given. Find the present value of the money in the following:...

1. Compute the simple interest earned when the principal, rate, and time of the loan are as given. Find the present value of the money in the following: $7000 due in 4 years, if the money is worth 6% compounded semiannually. How many years will it take to double $1000 at 4% interest compounded semiannually? 7. How much interest will you owe on a $1000 loan from March 3 to August 7 at 10% simple interest?