First you find the unit rate for (2, 7). You divide y by the x so-ooo 7 ÷ 2 = 3.5. Next you multiply the unit rate, 3.5, by 5 to get 17.5. Your answer is 17.5. I took a test with this question and that was the answer, in case you need assurance.
Hope this helps,
♥Nikki♥
