Question

Mia buys ink at the office supply store for a business. She buys 3 printer cartridges, and the sales tax is 7%. Write an expression to represent the total cost of ink supplies in two different ones

Answer 1

The expression to represent the total cost of ink supplies in two different ones is 7% × (12×2)

How to find cost after tax

• Number of printer cartridges bought = 3
• Sales tax = 7%
• Assume, cost of beach printer cartridges = $12

Total cost = $12 × 3

= $36

Amount of tax = 7% of $36

= 0.07 × 36

= $2.52

Amount paid = $2.52 + $36

= $38.52

Equation to represent total cost of 2 different ones = 7% × (12×2) + 24

= 0.07 × 24 + 24

= $1.68 + 24

= $25.68

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