John has invested $1200 into an account at 2% interest semiannually, what will his future valu be after 9 years? Show all your work please

Calculate the amount of SIMPLE interest earned on an investment of $1000 at 4% for 6 years

Richard invests $205.42 every month into his retirement. At the end of 30 years, he has a balance of $137,090.97. What interest has accrued over 30 years?

You want to withdrawal $25000 a year for 20 years.  Your account earns 10% interest.  How much do you need in the beginning?

Suppose you want to have $500,000 for retirement in 30 years. Your account earns 6% interest. How much would you need to deposit in the account each month?

Suzy put some money into an accout paying 5.5% interest compuunded continuously for 12 years. She now has $18,900. How much did Suzy put in the account initially?

Sam invests $1000 into an account earning 5.25% interest compound quarterly. How long will it take to double the money?

You put ​$350 per month in an investment plan that pays an APR of 4.5​%. How much money will you have after 21 ​years? Compare this amount to the total deposits made over the time period.

Determine the total value of an investment of $4750 invested at 9.7% simple interest for 8.25 years.

Rosita earned $ 84.55 interest over the period of 146 days on a term deposit witha principal of $2,562.12 that paid r percent per year. What was the value of r?