Probably Erica is charging 150% of the first month of rental/leasing an apartment.
$850 being 150% of the rental/ lease for a month
the amount Erica's fee is based is $850×100:150=$566.(6)
I don't know how you expand it but the answer is 3x + 25 unless that's expanding.
The answer is to this question is a)strong positive...
8 * 2 * 10 = 160 * 10 = 1600
