Use the table given to answer questions (a) and (b).
- What was the total number of wafers sold?
- Express your answer in terms of s in the simplest form. If s = 17, how many less wafers were sold on Saturday than on Sunday?
Day | Number of wafers sold |
Monday to Friday | 5s per day |
Saturday | s + 22 |
Sunday | 4s - 6 |