Here is number 7:

Here is number 8:

Use the quadratic formula to find the other two solutions:
Step-by-step explanation:
before the eliminating
mean = 78.5
median = 77.5
after eliminating the 180
mean = 67.2
median = 70
so median and mean will decrease
Answer:
Step-by-step explanation:
okay is there a graph for it? or is it just like that?
Profit=no of katanas sold * (selling price of each katana-cost of making one katana) - cost to run the website
D. X=130 but im not sure if this is correct