Answer:
v
Step-by-step explanation:
A. v
x = poster
y = pricing
clear prints: y = 2x
posters by sue: y = .50x + 15
B. v
10 posters would make the cost $20 for both companies
C. v
if the class were to get any where over 15 posters, i would recommend going with posters by sue. clear prints gets a lot pricier after 15 posters.
D. v
if the budget is $18, buy from the clear prints company. you'll get 9 posters out of that. if you buy posters from sue, you'll get 6 posters with $18.
if they can only use $8 (18-10=8), i would still recommend clear prints. they wouldn't be able to afford anything from sue since there's + $15