I think its 1/10 miles/hour
If there is 10% of $18 = 18 x 0.9 (1 - 0.1) = $16.20
Therefore the pie costs $16.20
He is saving 18 - 16.20 = $1.80
4x9=36your answer is 36
Reason:2squared is 2x2 =4
Reason:3squared is 3x3=9
When you square a number you are multiplying it by itself