Abag of marbles has 2 blue,3 green, 4
yellow and 7 black marbles in it. what is the ratio of yellow marbles to total marbles in the simplest form

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Add the fractions and simplify 1/2+ 1/3

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)