Answer:
{ 1,3,4,6,7}
Step-by-step explanation:
Do B∩C first
This is B intersect C which means what they have in common
B∩C = {3,6,7}
Then A∪(B∩C)
A union {3,6,7} which means join together ( combine with no duplicates) the two sets
T=4B+10C
for every bag there are 4 doughnuts
for every carton there are 10 doughnuts
x is greater than 3
