Final answer:
The correct equation to model the possible combinations of t-shirts and shorts you can buy with $108 is 4.50t + 6s = 108, where t is the number of t-shirts and s is the number of shorts.
Step-by-step explanation:
The question is asking to write an equation that models the possible combinations of t-shirts and shorts that can be bought with a total of $108, where t-shirts cost $4.50 each and shorts cost $6 each. Using t to represent the number of t-shirts and s to represent the number of shorts, the correct equation would be:
4.50t + 6s = 108
This equation represents the total cost ($108) as the sum of the cost of t-shirts (4.50 times the number of t-shirts) and the cost of shorts (6 times the number of shorts).