Answer:
$62.82
Step-by-step explanation:
An easy way is to just find out how you need to pay instead of how much you're discounting. So instead of finding how much 10% is and subtracting the original price, you can just find 90% of 67.80 and that would be your final answer.
90%=0.90
0.90 times 67.80 = 62.82
:)
