Johnny’s family goes out to dinner. The subtotal is $101.55. If tax is 5.5% and his family leaves a 18% tip, how much will their dinner out cost?
First, calculate the tax amount: $101.55 x 0.055 = $5.58525
Round up to the nearest cent: $5.59
Add the tax to the subtotal: $101.55 + $5.59 = $107.14
Calculate the tip amount: $107.14 x 0.18 = $19.2852
Round up to the nearest cent: $19.29
Add the tip to the total: $107.14 + $19.29 = $126.43
The total cost for Johnny's family dinner out is $126.43.