Marcus is trying to buy a set of subwoofers for his car. Beat Tha Block sells 12-inch subwoofers for $375 each plus a $200 installation fee. Bass Pros has the same subs for $425 each and free installation. Write an inequality to model how many subwoofers Marcus has to buy so that Beat Tha Block is the better value.
a) 375x < 425x + 200
b) 200 < 375x < 425x
c) 375 + 200x > 425x
d) 375x > 425x + 200