The total cost of hard drive is $29.96
Step-by-step explanation:
Given,
Original price = $40
Discount = 30%
Discount amount = 30% of $40 = [tex]\frac{30}{100}*40[/tex]
Discount amount=[tex]\frac{1200}{100}= \$12[/tex]
Price after discount = Original price - discount amount
Price after discount = 40-12 = $28
Tax rate = 7%
Tax amount = 7% of price after discount
[tex]Tax\ amount=\frac{7}{100}*28\\Tax\ amount=\frac{196}{100}\\Tax\ amount=\$1.96[/tex]
Total cost of hard drive = Price after discount + Tax amount
Total cost of hard drive = 28+1.96 = $29.96
The total cost of hard drive is $29.96
Keywords: subtraction, addition
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