The total cost of Sal purchase for buying CDs, computer cable and MP3 player case was $120.78
What is an equation?
An equation is an expression that shows the relationship between two or more variables and numbers.
The total cost is:
Total cost = 3(15.98) + 39.95 + 24.99 = $112.88
Sales tax = 7% of $112.88 = $7.90
Total cost of purchase = $112.88 + $7.90 = $120.78
The total cost of Sal purchase for buying CDs, computer cable and MP3 player case was $120.78
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