Aconcert is being held in a gymnasium that can hold no more than 550 people. a permanent bleacher will seat 30 people.. the event organizers are setting up 20 rows of chairs. at most, how many chairs can be in each row?

Which value of c would make he following expression completely factored? 8x+cy

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation