You go to Home Depot to buy some materials for a project. Your total bill for materials only was $45.90. You go to the check out where you get charged taxes of 7.2%. That gets added to your bill. You then have a coupon for $15 off your total purchase after taxes. What is the amount you actually pay for your bill after taxes and coupons are applied?

$34.20

Step-by-step explanation:

First, find the cost with tax

You are paying 7.2% tax, but you are also paying for 100% of the bill

100%+7.2%=107.2%

So, you are really paying for 107.2% of the bill

Convert 107.2% to a decimal by dividing by 100 or moving the decimal 2 spaces to the right

107.2/100=1.072

Multiply the decimal by the cost of the bill

1.072*45.90=49.2048

But, we also have a coupon for $15 off

Subtract 15 from the cost with tax

49.2048-15=34.2048

Round to the nearest cent/hundreth

$34.20

Hope this helps! :)

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