The answer is going to be 8 left over. hope that helped
450/15 = 30 mpg -- Adam's
416/13 = 32 mpg -- Kenny's
Kenny is going to get the better gas mileage at 32 mpg (miles per gallon)
The distance between two points knowing theirs coordinates:
AB =√[(x₂-x₁)² +(y₂-y₁)²]; ===>A(-2,4) & B(0,-6) Given
A(x₁,y₁) & B(y₂,y₁)
AB =√[(0-(-2))²+(-6-4)²] =√(104) = 10.198 ≈ 10.2
The plumber worked for 5 hours because 450-200=250 which gets rid of the initial fee so 250 divided by 50 is 5
