Answer:
The regular price is $1,889.79
Explanation:
20% to 0.20
$89.99 divided by 0.20 equals 1,799.80
$1,799.80 plus $89.99 equals $1,889.79
71.99
89.99 x .20=17.998
89.99-17.998=71.992
Round
She paid $71.99
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