If Samuel wanted to create a square garden in his back yard, and he knows that his dad ordered 130 ft² of grass, then what would the dimensions of the garden be? Show all steps, an equation, and explain the solution(s).
Is the solution a real number? A rational number?

Assuming that X represents the number of hours worked and f(x) the number of cars washed, the equation would be f(x)=11x+14x.

The 11x represents the number of cars washed by Arianna in x number of hours and the 14x represents the number of cars washed by Matthew in x number of hours. You add the two because they are each washing their own car at their own pace but working on one lot.