Answer:
The total cost of an item can be calculated by adding the sales tax to the retail cost:
Step-by-step explanation:
- Given that c represents the retail cost of an item.
Sales tax = 7%
= 7/100
= 0.07
Total cost of an iten can be calculated by adding the sales tax to the retail cost.
i.e. c + .07c
Therefore, the total cost of an item can be calculated by adding the sales tax to the retail cost:
