Susan walked for 30 minutes. Reggie walked 3 times longer than Susan. 
 Which equation could be used to calculate the number of minutes that Reggie walked? 
 Let the variable w stand for the number of minutes Reggie walked.
 A.30.3=w
 B.30=w.3
 C.30=w+3
 D.30 Divided by 3 =w