Atheater can seat 391 people .the number of rows is 6 less than the number of seats in each row. how many rows of seats are there.

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.