Okay, so you find the area of the full circle, 81pi and then 120 is 1/3 of the circle so you divide 81pi by 3 and get 27pi.
Tom : 22/10= 2.2 Ian: 18/9= 2 Tom has higher percentage
The answer is C.
Just plug in x = 1 for each of them. The correct one is the one that gives y = 5, which is C.
The first one is (v+6)(v-6)
