To work out 7% of 600, this is what you do
7/100 x 600
this will give you your answer
7% of 600 = 42
All you have to do for this is take your inches (18 7/10 or 18.7) and divide it by the number of hours (12) which makes 1.56in per hour.
A=v1-v0/t
a*t=v1-v0
(a*t)+v0=v1
The answer is to your question is 1. You must replace t with 12 and then follow the rule of PEMDAS to solve this equation.
