$\"\"$

Amount of sales tax = the tax is 7% of the price of the back pack.

Amount of sales tax = 7% of $35.00

= 0.07 $\"\"$ 35.00 ( $\"\"$ )

= 2.45 (Use a calculator to multiply)

$\"\"$

Total price of the back pack = Original Price + Amount of sales tax.

= $35.00 + $2.45

= $37.45 (Subtract: 35.00 + 2.45 = 37.45)

$\"\"$

Total price of the back pack is $37.45.