Okay so there are 45 cheese pizzas and 20 pepperoni pizzas they are asking for the ratio of cheese pizzas to pepperoni pizzas that would be 45:20 now this needs to be simplified, so divide both numbers by a common factor, which would be 5 in this case...45/5=9 and 20/5=4 so the ratio would be 9:4
1 yard=36". 25 yeards = 25*36" = 900" 3 rolls = 3*900 = 2700" Each piece must be 22" long, so the number of pieces = 2700/22 = 122 pieces (2684") with 16" left over.