Show formula need 3 more done who ever does this asap ill give 20 points each for next three to you!

mia is buying a used trailer for $5000 on credit. she plans to travel
through the rockies over the summer. she can afford payments of
$200 each month and is considering these two options:
• the dealership credit card at 15.8%, compounded daily, and
an immediate rebate of 2.4% off her first purchase
• a bank loan at 9.8%, compounded monthly
a) how much would mia end up paying, in total, with each option:
b) how much interest would she pay for each option?
c) how long will it take her to pay off the balance for each option!
d) what should she use: the credit card or the bank loan? why?