Answer:
The least common denominator is (b-8)(b+8)(b-1)
Step-by-step explanation:
We are given expression as

Firstly, we will factor both denominators


so, we can plug it back

First term denominator is
(b-8)(b+8)
Second term denominator is
(b+8)(b-1)
So,
Least common denominator will be
(b-8)(b+8)(b-1)
So, we get

Answer:
0 feet
Step-by-step explanation:
Because the landing platform is on the ground, it is 0 feet.
X = 8.5 because 8.5 x 2 = 17 and 17 + 1 = 18