Lin’s father is paying for a 20$ meal. He has a 15% off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin’s father pay for the meal?
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Lin's father is paying $20 for a meal
He has a coupon of 15%
so , 15% of 20 is reduced
= 15/100 × 20
= $3
Now , He has to pay
= $20 -$3
= $17
Now 7% tax is applied....
So, 7% of 17
= 17/100 ×7
= 1.19$
Now the amount he has to pay=17 + 1.19 = $18.19
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