Try this solution (see the attachment, three basic steps, the answer is marked by red colour).
E

e=mfg
Where m is a constant of proportionality;
e=4, f=2 and g=8
Then;
4=m*2*8
4=16m
m=0.25
Because it is in the middle of those given points
Answer:
Kiana's conclusion is incorrect. Kiana needs to sell 31 hair products
Step-by-step explanation:
The equation written doesn't factor in the $65.25 that she already had saved. The correct equation would be 0.5(34.50x) = 600 - 65.25. The answer to that would be 31 hair products needed to be sold.