Answer:
B. W = (P - 2L) / 2
Step-by-step explanation:
(I'm gonna use capitals so it's easier to identify length and width variables)
P = 2L + 2W
Isolate w:
P - 2L = 2W
(P - 2L) / 2 = W
Ok, a fun hack
if f⁻¹(a)=b then f(b)=a
so if f⁻¹(7)=b then f(b)=7
to find b, find x such that f(x)=7
7=0.5(3)^x
times both sides by 2 (or divide both sides by 0.5)
14=3^x
take log₃ of both sides

What is the least common denominator for fractions that have denominators of 5x+10 and 25x^2-100
Well, I do not know if I read this correctly. Are these the answers?
-5 ≥ -7
-5 ≤ -7
-5 > -7
-5 < -7
-5 = -7
If so, then -5 > -7 is a true statement because -5 is greater than -7.