Use the table given to answer questions (a) and (b).
- What was the total number of puffs sold?
- Express your answer in terms of b in the simplest form. If b = 29, how many less puffs were sold on Saturday than on Sunday?
Day | Number of puffs sold |
Monday to Friday | 7b per day |
Saturday | b + 30 |
Sunday | 4b - 8 |