Each marble bad sold by diane's marble company contains 4 yellow marbles for every 5 blue marbles. if a bag has 30 blue marbles, how many yellow marbles does it contain?

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

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation