Answer:
The answer is 7
Step-by-step explanation:
3 1/2 ÷ 1/2 = 7
14/2 = 7
7/2 = 3.5
3.5/2 = 1.75
1.75/2 = 0.875
(x+3)(x-2)= x - 2
x^2 + x - 6 = x - 2
x^2 - 6 = -2
x^2 - 4 = 0
x^2 = 4
x = 2, -2
15.6 feet