What is the sum of 5√7 and 3√28

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

George is putting trim around his rectangular deck, including the gate. he will need 44 feet of trim to do the entire deck. if the deck is 13 feet long, how wide is the deck?

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?