Alex has 19 marbles, Emily has 5 marbles.
How many more marbles does Alex have than Emily?
marbles

Write an equation of a line in slope intercept form that is perpendicular to the line 2x -3y = 12 and passes through the point (2, 6).

Explain how you can use the associative property to evaluate (7x50)x4.

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