Which equation is represented by the graph below

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression