Answer:
Step-by-step explanation:
18/32 is the same as 9/16 or 0.5625
16.6 times because if there is 3 numbers you simply divide it into 50
The general form of an equation is

. Solving for (5+X)(5-X)=7 by multiplying the factors and subtratcting 7 on both sides gives the equation

, so
A = 1
B = 0
C = -18
(3,-1) just fill it in and the only one that makes sense is the first one