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Sagot :
Answer: $18.19
Step-by-step explanation:
Given
The original Price of the meal is [tex]\$20[/tex]
After a 15% discount, the price reduced to
[tex]\Rightarrow \text{Reduced Price}=20\times -20\times 0.15\\\Rightarrow \text{Reduced Price}=20[1-0.15]=20\times 0.85\\\Rightarrow \text{Reduced Price}=\$17[/tex]
After this, a sales tax is applied
So, there would be an increase in price
[tex]\Rightarrow \text{New Price}=17+17\times 0.07\\\Rightarrow \text{New Price}=17[1+0.07]=17\times 1.07\\\Rightarrow \text{New Price}=\$18.19[/tex]
So, the father pays an amount of [tex]\$18.19[/tex]
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