Simplify into one fraction. (-4x/x+7) - (8/x+7)

a.
-4x+8/ x+7

b.
x-8/x

c.
-4x-8/x+7

d.
x+7/-4x

Pls i’m too dumb to know what i’m doing right now

Will give find an equivalent function to f(x)=5(2)^3x. the 5(2)^3x means 5(2) to the 3x power answer choices: a: f(x)=125^x(8)^x b: f(x)=10^2x c: f(x)=40^x d: f(x)=5(8)^x

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality