Find c, d, and e in the graph

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?