Dave buys a base ball for $15 plus an 8% tax. mel buys a football for $20 plus an 8% tax. what is the difference, in dollars of the amount save and mel pay

To find the total amount Dave and Mel paid, apply the taxes to their initial purchases.

Dave paid $15 for a baseball. There was an 8% tax added to this total afterwards. To add the tax to the amount Dave paid, convert the percentage into a decimal:



Multiply the cost of the baseball by this decimal to find the tax:



Add the tax onto the cost:



Dave paid $16.20 in total for the baseball.

Mel paid $20 for a football. There is an 8% tax added to this total afterwards. We already have the decimal for an 8% tax, so we can multiply the football's cost by the decimal:



Add the tax onto the cost:



Mel paid $21.60 for the football.

Subtract the bigger cost by the smaller cost:



There is a $5.40 difference between Dave's and Mel's purchases.

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