What is the area of the pyramid square base

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?

X-intercept=-5 y-intercept=2 the equation of the line is

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?