Use the table given to answer questions (a) and (b).
- What was the total number of biscuits sold?
- Express your answer in terms of a in the simplest form. If a = 24, how many more biscuits were sold on Sunday than on Saturday?
Day | Number of biscuits sold |
Monday to Friday | 4a per day |
Saturday | a + 39 |
Sunday | 4a - 8 |