Answer:
$91
Explanation:
Find the percentages needed:
10% of $120 = $12 (either break it into 2 parts and do the 10% + 10%)
20% of $120 = $24 (or just do the percentage off the item straight away)
Subtract the amount from the percentage from the item:
$120 - $24 = $96
$96 - $5 (additional) = $91
Answer = $91