Use the table given to answer questions (a) and (b).
- What was the total number of wafers sold?
- Express your answer in terms of y in the simplest form. If y = 22, how many less wafers were sold on Saturday than on Sunday?
Day | Number of wafers sold |
Monday to Friday | 3y per day |
Saturday | y + 27 |
Sunday | 4y - 6 |