x = number of comics Ross bought
A = 10*x = amount spent on buying those x number of comics at $10 each
B = 17*(x-1) = amount Ross gets from selling every comic book except one
B-A = 17*(x-1)-10x = 7x-17 = profit = 49
7x-17 = 49
7x = 49+17
7x = 66
x = 66/7
x = 9.42857 approximately
Because x isn't a whole number, I'm thinking that there's a typo in the problem somewhere. I would double check with your teacher.
Answer:
B)
Step-by-step explanation:
options B and C are the only equations that create a 'sideways' parabola
only option B would open to the right because the coefficient of the y-term is positive
(1/100) * 1 = 1/100
I know the question isn't worded that well but that's what it means
From least the greatest the answer would be 7/12 .75 5/6