Use the table given to answer questions (a) and (b).
- What was the total number of croissants sold?
- Express your answer in terms of z in the simplest form. If z = 24, how many less croissants were sold on Saturday than on Sunday?
Day | Number of croissants sold |
Monday to Friday | 3z per day |
Saturday | z + 27 |
Sunday | 4z - 5 |