Use the table given to answer questions (a) and (b).
- What was the total number of wafers sold?
- Express your answer in terms of f in the simplest form. If f = 24, how many less wafers were sold on Saturday than on Sunday?
Day | Number of wafers sold |
Monday to Friday | 5f per day |
Saturday | f + 35 |
Sunday | 4f - 5 |