Final answer:
Walmart offers a better buy for photo booth props with a cost of approximately $0.37 per prop compared to Party City's $0.50 per prop.
Step-by-step explanation:
To determine which store offers the best buy for photo booth props, we need to calculate the cost per prop at each store. At Party City, the cost per prop for the Traditional Grinch Photo Booth Props is $6.50 divided by 13, which gives us approximately $0.50 per prop. At Walmart, the cost per prop for the 27 pcs of Funny Christmas Photo Booth Props is $9.99 divided by 27, which gives us approximately $0.37 per prop.
Comparing the two, Walmart offers a lower cost per prop than Party City. Therefore, Walmart has the better buy.
Choice (b) Walmart is the correct answer.