Answer:
(A ∪ B) = {15, 17, 19, 20, 21, 23, 25}
Step-by-step explanation:
Multiples of 5:
{0, 5, 10, 15, 20, 25, ...}
So between 14 and 26:
A = {15, 20, 25}
Odd numbers between 14 and 26:
B = {15, 17, 19, 21, 23, 25}
(A ∪ B)
All numbers that are part of at least one of these sets. So
(A ∪ B) = {15, 17, 19, 20, 21, 23, 25}
