What is the total cost a $12.50 item plus 8% sales tax?

The total cost is: $13.50              

Step-by-step explanation:

Given

Item cost = $12.50

Sales tax = 8% = 0.08

To determine

Total cost = ?

Sales amount can be calculated by multiplying item cost 12.50 by sales tax 8% or 0.08.

Sales amount = Item cost × 0.08

                       = 12.50 × 0.08

                       = $1

The total cost can be calculated by adding the item cost plus the Sales amount.

Total cost = Item cost + Sales amount

                 = 12.50 + 1

                 = $13.50

Therefore,

The total cost is: $13.50                  

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