Answer this and you get 100 points

Combined megan and kelly worked 60 hours. kelly worked twice as many hours as megan. how many hours did they each worked?

What is the area of a pizza with a radius of 40 cm leave the answer in terms of π to find your exact answer 40π cm² 1600π cm² 800π cm² 80π cm² π=pi

Simplify using positive exponents only.