Convert 6.5% to a number that can be used:
6.5%/100 = 0.06
Find out how much you are going to pay due to tax by multiplying the decimal by the total of the meal:
0.06 × $7.50 = $0.49
Now that we know that the tax will make you pay 49 cents more, we can add up $0.49 and the meal to see how much we are going to pay for the whole thing:
$7.50 + $0.49 = $7.99
Answer: $7.50 a meal + 6.5% = $7.99
