Answer:
21.54
Explanation:
100% -> 89.75
20%-> 17.95
17.95+89.75=107.70
107.70÷5=21.54
$21.54
$89.75 x 20% = 17.95
17.95 + $89.75 = 107.7
107.7/5 = $21.54
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