Use substitution. What is the solution to the system of equations? Use the drop-down menus to explain your answer. y=1/2x+2
2y = x +4

The system of equations has solutions. The two equations represent lines.

What is the value of x in the diagram below?

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=