Final answer:
To calculate the total cost for the order, you need to multiply the number of plaques by the cost of each plaque and then add the one-time shipping fee. The total cost is 7.50x + 40.
Step-by-step explanation:
To calculate the total cost for the order, we need to consider the cost of each plaque and the one-time shipping fee. Each plaque costs $7.50, so the cost of the plaques can be calculated by multiplying the number of plaques by $7.50. Let's say Georgette purchased 'x' plaques. The cost of plaques would be 7.50 times 'x' which is 7.50x. The total cost of the order, including the shipping fee, can be found by adding the cost of plaques and the shipping fee. Therefore, the total cost is 7.50x + 40.