What’s 2(a+b) if a=2 and b=3

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?

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base