Use the table given to answer questions (a) and (b).
- What was the total number of biscuits sold?
- Express your answer in terms of j in the simplest form. If j = 23, how many more biscuits were sold on Sunday than on Saturday?
Day | Number of biscuits sold |
Monday to Friday | 6j per day |
Saturday | j + 20 |
Sunday | 4j - 8 |