Step-by-step explanation: Disclaimer: x will represent b
The reason that it is correct is because it says that "each also buys a healthy snack bag". If we look at the problem, we know that each friend needed a ticket to get in, which cost 6.75. Let's say that the price of the Healthy Snack Bag is x. We know that four friends go together, and each has to pay a ticket. So we have
4 Friends each get a healthy snack bag with the price of x and a ticket that costs 6.75.
So the price that each friend had to pay was 6.75(ticket) + x(snack) All four friends needed to do that, so we have 4 of the top equation. That can simplify to 4(6.75+x). It also says that the total cost of all 4 of them was 37. So 4(6.75+x) = 37. By using the distributive property, you get 27+4x=37. With some simple algebra, and by isolating x, you get x = 2.5.
