Answer:
Step-by-step explanation:
Givens
, where
Therefore, the retail price is $70.65
128/2=64
64/2=32
32/2=16
16/2=8
8/2=4
4/2=2
2/2=1
d
155$ after 3 months means 45$ less. 45$ divided by 3 (the number of months) =15
that means she spends 15$ per month