Answer:
the lines are parallel because yes
25 * 16 = 400 tickets were sold
400 * $15 = $6000 was raised
Parallel means they have same gradient.
m=(y2-y1)/(x2-x1)
m=(5-(-4))/(3-(-2))
m=9/5
so the answer is B since the gradient also 9/5
#11 is c:$27. im not sure about #10
