Answer:
$247.50
Step-by-step explanation:
Answer:A
Step-by-step explanation:
You can put the numbers where the variables are and do the arithmetic, or you can simplify the expression first. In the latter case, you have
(3a^(-2-(-1))b^(6-5)/2)^2 = (3a^(-1)b^1/2^2 = (3b/(2a))^2
= (3(-2)/(2(3)))^2 = (-1)^2 = 1
The value of the expression is 1.
#2
8/20=12/x Cross multiply 8x=20×12 8x=240 Now divide
X = 240÷8 X=30
So 30 ft
