Someone help me please ?

To solve this, we are going to want to find what 13% is equal to. We do that by sliding the % sign over 2 places to the right and turning it into a decimal. So we get .13
Then we are going to multiply .13 and 67.99. if we do that on a calculator we would get 8.8387, which can be rounded to 8.84. Which is answer C. $8.84.