Use the table given to answer questions (a) and (b).
- What was the total number of biscuits sold?
- Express your answer in terms of b in the simplest form. If b = 27, how many more biscuits were sold on Sunday than on Saturday?
Day | Number of biscuits sold |
Monday to Friday | 4b per day |
Saturday | b + 31 |
Sunday | 4b - 7 |