Use the table given to answer questions (a) and (b).
- What was the total number of puffs sold?
- Express your answer in terms of p in the simplest form. If p = 21, how many less puffs were sold on Saturday than on Sunday?
Day | Number of puffs sold |
Monday to Friday | 5p per day |
Saturday | p + 24 |
Sunday | 4p - 5 |