Question: i need help with these 4. Joshua borrowed $1000 from his friend and paid him back $1050 in six months. What simple annual interest rate

i need help with these
4. Joshua borrowed $1000 from his friend and paid him back $1050 in six months. What simple annual interest rate did Joshua bav his friend? Compound Interest Problems: Use the formula FV=P(1+nr)nt 5. Gina deposited $1500 in an account that pays 4% interest compounded quarterly. What will the balance be in 2 years? 6. Gina deposited $1500 in an account compounds the interest quarterly. If the balance of her account after 3 years is $2100, what was the interest rate? Round your answer to the nearest tenth of a percent. 7. The Garcias have $12,000 in a savings account. The bank pays 3.5% interest on savings accounts, compounded monthly. Find the total balance after three years. 8. Determine the interest rate on a $2500 investment if the future value after 5 years is $4000 and the interest is compounded monthly. Round your answer to the nearest tenth of a bercent
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