Answer a^3-3a
a^2 times a = a^3 you add exponents
The least common denominator of 12, 8, and 36 is 72.
Answer: The first option.
Step-by-step explanation:
If you square you get 
x=0
Answer: 6.5%
Step-by-step explanation:
$5.86 -$5.50
=$0.36
We then divide $0.36 by 5.50 =0.065
Multiply by 100 to convert decimal to percentage= 0.065×100
=6.5%