When worksheets are grouped, what you do to one worksheet happens to the other worksheets in the group. To save yourself time and ensure consistency, you will group the Quarter $1-4$ worksheets and then create formulas and complete formatting.

$$Group worksheets Quarter$1$ through Quarter$4.$

Create formulas in the cell range D$6$:E$10$ to calculate the admission collected from both adult and children visitors for each location using the referencing to the appropriate rates in the Rates worksheet.

Leave the worksheets grouped.