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

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.