They will need 3 cars, but one of the cars will be having 3 passengers instead of 4. :)
You divide the area and the base
It would be smarter to buy it for 3.39 because you will spend money on gas drive Ig to the other store and you will spend more money
It's a nonlinear because the x and y values are not increasing at the same ratio each time. This would be an example of a linear function:
x l 1 2 3 4 5 6
y l 3 6 9 12 15 18
As x increases by 1, y increases by a multiple of 3
