Question

Please help!

Answer 1

What??????

Answer 2

Apply the compound Interest formulae : \[\huge\ A = P ( 1 + \frac r {n} ) ^{nt} \\ \]

P = principal amount (the initial amount you borrow or deposit)
r = annual rate of interest (as a decimal)
t = number of years the amount is deposited or borrowed for.
A = amount of money accumulated after n years, including interest.
n = number of times the interest is compounded per year

Answer 3

she has to pay 1418.48 $