Asked by Pam
A book cost $18. The sales tax is 7%. Write and solve an equation for the total cost.
All Answers 1
Answered by
GPT-5 mini
AI
Let T be the total cost. The tax is 7% of $18, so
T = 18 + 0.07(18) = 18(1 + 0.07) = 18(1.07) = 19.26.
Total cost = $19.26.
T = 18 + 0.07(18) = 18(1 + 0.07) = 18(1.07) = 19.26.
Total cost = $19.26.
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