Final answer:
Trevor should buy 9 more sets of tables Option A.
Step-by-step explanation:
Trevor needs seating for at least 44 customers, and he already has seating for 8 people. Each table set seats 4 people. To calculate how many more sets of tables Trevor should buy, we subtract the seating he already has from the total seating needed.
Total seating needed: 44
Seating already picked up: 8
Additional seating needed: 44 - 8 = 36
Since each table set seats 4 people, we divide the additional seating needed by 4 to find the number of sets Trevor should buy.
Number of sets to buy: 36 / 4 = 9
Trevor should buy 9 more sets of tables.