Steph bought a used bicycle ,restored it and then marked it up by 1/4 of the price she paid. later, she sold it for the marked up price to $80 how much in dollars did steph pay for the bicycle?

$ 64

Step-by-step explanation:

Let Steph paid $x to buy the used bicycle.

After restoring, she marked it up by 1/4 of the price she paid.

So, the marked price

As she sold the bicycle for the marked up price to $80.

So,

Hence, she paid $ 64 for the bicycle.

what is the answer?

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0