Ms. katz paid $50 for a used bicycle and then sold it to her neighbor for $60. she decided to buy it back, but she had to pay $70 for it. if she then sold it again for $80, how much money did she make or lose overall? show your solution in enough detail so a teammate could easily understand how you found your answer.

$20.00

Step-by-step explanation:

Cost price of the bicycle paid by Mr. Katz = $50

Selling price of the bicycle = $6

Money earned by Ms. Katz = 60 - 50

                                             = $10

She purchased it again at the price = $70

and sold it again at the price = $80

Money earned by her = selling price - cost price

                                    = 80 - 70

                                    = $10

She earned the profit = (10+10) = $20

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