Use the table given to answer questions (a) and (b).
- What was the total number of wafers sold?
- Express your answer in terms of x in the simplest form. If x = 29, how many less wafers were sold on Saturday than on Sunday?
Day | Number of wafers sold |
Monday to Friday | 3x per day |
Saturday | x + 36 |
Sunday | 4x - 7 |