Question

PLZ HELP

Sales tax is 7%. If c represents the retail cost of an item, which of the following expressions represent(s) the total cost of the item?

0.93 c
c - 0.07 c
1.07 c
0.07 c
c + 0.07 c

Answer 1

The total cost of an item can be calculated by adding the sales tax to the retail cost:

• c + .07c

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:

• c + .07c