Jolie used a $20 gift certificate to help pay for dinner for herself and a friend after an 18% tip was added to the bill the $20
was deducted the amount she paid was $8.90 what was the original bill
1 answer:
T = total bill = 20 + 8.90 = $28.90
O = original bill
O * 1.18 = T
O * 1.18 = 28.90
O = 28.90 / 1.18
O = $24.49
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