A movie theater sells two different sizes of candy. Small boxes cost $4.20 and large boxes cost $9.00.a. Complete the table to the right.b. If the theater sold 45 boxes of candy in one hour, write an equation relating the number of boxes sold.c. If the theater earned a total of $309 in that one hour, write an equation relating the total amount earned.Categories Value Number AmountSmall box 4.20 x ....Large box 9.00 y ...