Human: Amber goes to the store and buys 10 rolls of toilet paper, 7 rolls of paper towels, and 3 boxes of tissues. One roll of toilet paper costs $1.50. One roll of paper towels costs $2. If the total cost of all the items is $35, how much does one box of tissues cost? Assistant:
The total cost of toilet paper is 10 * $1.5 = $15
The total cost of paper towels is 7 * $2 = $14
The total cost of tissues is $35 - $15 - $14 = $6
The cost of one box of tissues is $6 / 3 = $2.