Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’s bill is 7%. How much is Isaac’s total bill? Show your work.

Answer 1

To calculate Isaac's total bill, we need to follow these steps:

1. Calculate the total cost of the shoes before tax:

   • First pair: $37.00
   • Second pair: $42.00
   • Total cost before tax = First pair + Second pair \[ \text{Total cost before tax} = 37 + 42 = 79 \text{ dollars} \]

2. Calculate the sales tax:

   • Sales tax rate = 7% = 0.07 in decimal form
   • Sales tax = Total cost before tax × Sales tax rate \[ \text{Sales tax} = 79 \times 0.07 = 5.53 \text{ dollars} \]

3. Calculate the total bill including tax:

   • Total bill = Total cost before tax + Sales tax \[ \text{Total bill} = 79 + 5.53 = 84.53 \text{ dollars} \]

Thus, Isaac’s total bill is $84.53.