One pen costs $0.25andonemarkercosts$0.35. At those prices, what is the total cost of 18 pens and 100 markers?

1. 39.5

The correct option is A 39.5

Multiplying $0.25by18yields$4.50, which is the cost of the 18 pens; and multiplying $0.35by100yields$35.00, which is the cost of the 100 markers. The total cost is therefore Equivalent decimals, such as $39.5or$39.500, are considered correct. Thus the correct answer is $39.50 (or equivalent).

Note that the dollar symbol is in front of the answer box, so the symbol $ does not need to be entered in the box. In fact, only numbers, a decimal point and a negative sign can be entered in the answer box.