Could someone plot something on a graph for me?

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2