The Total Amount of Money Accrued from a Principal of P

Multiple Choice

The total amount of money accrued from a principal of P dollars invested at r% simple interest for 13 years is given by $P + 13 r P$ . Factor this expression.

A) $P ( 1 + 13 r )$
B) $14 r P$
C) $r ( P + 13 )$
D) $r ( 1 + 13P)$
E) $P ( r + 13 )$