Answer:

Explanation:
Let be "b" the cost in dollars of each bag.
According to the information provided in the exercise, yo know that the total cost of 5 bus tickets that the Hipster Dance company purchases is:

And they have 7 bags that cost "b" dollars each. So, the total cost of 7 bags can be represented with this expression:

Since the total bill is $823.50, you can write the following equation to represent this situation:

Solving for "b", you get:
