I think it’s b i’m sorry if it’s wrong
Answer:
= [r,z]
Step-by-step explanation:
B U A = { f,g,p,x,h,y }
(B U A )' = {q,r,z }
You save 5 cents per ounce by using the 40 ounce jar, because if you do $5.20 divided by 40 it equals $0.13 but if you do $2.70 divided by 15 it equals $0.18 which is 5 more cents the the 40 ounce