#1. It helps to write everything out:
Sell price for boxes of cookies: $4.25x (x representing number of boxes)
Cost of each carton: $30y (y representing number of cartons)
The group bought 6 cartons, so we substitute y for 6:
30(6) = $180 they spent on the cartons.
Each carton contains one dozen boxes of cookies. In other words, 12 boxes of cookies. WIth 6 cartons purchased, we multiply 6 with 12 to get 72 boxes of cookies total they sold. Now we substitute x for 72:
4.25(72) = $306 they earned.
#2. The pattern is 2x + 5 = y where x represents the number of rides and 5 represents the admission. The y represents the total cost. Simply plug in the x's in the table into this equation to get the answer for y.
