The amount of money received in change after making a $10 purchase with a $20 bill

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

In what form is the following linear equation written y=9x+2

Write an equation for the function that includes the points (2,100)and (3,100)