Answer:
8
Step-by-step explanation:
5y-7y=-2y=-2(3)=-6
¾
Length of Kerry string = 7(½) = 15/2
Length of John string = 6(¾) = 27/4
15/2 - 27/4
30 - 27/4
3/4
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45
The answer is B.
You have to apply the area of triangle formula :