The amount A in an account is given by the formula A = p + i where p is the principal and i is the interest. How much interest was earned if an original deposit (the principal)of $4,250 has grown to be $4,520?
A)$280
B)$270
C)$255
D)$275
E)$250

Question

Quizplus · Accepted Answer

The interest earned is calculated by subtracting the original principal from the total amount after interest has been added. So, $4,520 - $4,250 = $270.

The Amount a in an Account Is Given by the Formula