Taking A Test Right Now

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?

(40 points) i need some . an answer definition is appreciated as well.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.