A man is trying to enclose a round pasture. He has 240 feet of fence. How big(area) of a pasture can he enclose?

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Answer! if you don’t mind, can you explain