Question

please answer this fast I have exam tomorrow​

Answer 1

Answer:

{y∣

3

5y

−7≤13}, y is a prime number

so

3

5y

−7≤13

⇒

3

5y

≤13+7=20

⇒5y≤20×3=60

⇒y≤

5

60

=12

so y≤12 and y is a prime number.

so y can be 2,3,5,7,11