Question

B = {x/x is a prime number greater than 20 but less than 50} C = {even number less than 20}​

Answer 1

Answer:

{ }

Step-by-step explanation:

2 is only even number

Answer 2

B = {23, 29, 31, 37, 41, 43, 47}

C = {2, 4, 6, 8, 10, 12, 14, 16, 18}