Exponent is the expression in where you convert product factor expression into a shorter expression. So really you use it to make the question simpler and shorter(easier to understand).
Answer:
12 units
Step-by-step explanation:
h=2x-6
18=2x-6
24=2x
12=x
Answer is A. 6
hope it helps
The race is 3 miles.
21 minutes divided by 7mph (miles per hour)= 3 miles