The Sales Tax $T$ , in Dollars, I Have to Pay When I Buy

Multiple Choice

The sales tax $T$ , in dollars, I have to pay when I buy D dollars worth of merchandise is giv- en by $T = 0.09 D$ If I decide to buy $35 more in merchandise, how much additional sales tax will I have to pay?

A) $3.15
B) $3.44
C) $0.31
D) $0.09