Answer:
A u B = {3,5,6,7,8,11,12}
Step-by-step explanation:
A = {3,6,7,11}
B = {3,5,7,8,12}
A u B = {3,5,6,7,8,11,12}
I mean I think so I’m not completely sure it’s a really hard question
It is (B) I think:) hope this helps
7.8 = 0.65x
x = 100/65 * 78/10
x = 10/5 * 6
x = 12
