Please help! It's grade 11 college math. Compound Interest and present value. please help for 8.2)Q4. Q5. and Q6. For 8.3) Q7. let me know if you want my teachers examples if your having trouble. Thank you very much!

8.2 Compound Interest, pages 430-435 4. Substitute the values into the formula 8. Sup A = P(1 + i)". Do not evaluate. in to a) a $600 investment at 7% per year, by compounded semi-annually, for c three years b) a $4000 loan at 9% per year, compounded quarterly, for five years 9. () a $6000 loan at 8.4% per year, lly compounded monthly, for three years d) a $1200 investment at 4.5% per year, compounded semi-annually, for two years DO 5. Bill made two investments. led A $5000 at 5.5% per year, compounded quarterly, for four years B $2500 at 5.8% per year, compounded semi-annually, for four years a) Which investment earned him more money? b) What is the total interest earned on his investments? 6. Barbara borrowed $2300 at 10% per year, compounded quarterly. orth a) How much must she repay after five years? b) How much of the amount she repays for is interest? ue. 8.3 Present Value, pages 436-441 7. Neaz wants to invest enough money ear, today so that his son will have $4800 your toward his expenses when he goes to college in five years. If the annual interest rate is 5.7% per year, compounded monthly, how much should Neaz invest