Which graph shows a proportional relationship between x and y

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared