Hello, I need help with these questions and the correct answer is in blue. Any help offered is greatly appreciated, thanks!!!

Ch. 2 - Learning Objective 2 Question 5: If Andr invests $2,000 in 3 years' time, and an additional $5,000 in 6 years' time, how much will he have 8 years from today at an interest rate of 7%, compounded quarterly? (1 Point) a. $8,530 b. $8,574 c. $8,921 d. $9,903 Question 29: A $15,000 personal loan charges a rate of 6%, compounded monthly and charges a $250 administration fee at the outset. What is the effective cost of the loan? (1 Point) a. 6.06% b. 6.10% c. 6.17% d. 6.27% Ch. 6 - Learning Objective 4 Question 30: Julien's credit card charges an APR (annual percentage rate) of 18%. His credit card statement is monthly His bank savings account pays an interest rate of 3.6%, compounded monthly. If Julien withdraws $300 from his bank account to pay a credit card balance that would otherwise not be paid over the upcoming year, how much money will he save? (1 Point) a. $58.69 b. $47.71 c. $43.20 d. $38.97