Answer :
Step 1
Let
A month has exactly 28 days (p)
it is February (q)
in the question we have
[tex]p\leftrightarrow q[/tex]Step 2
write 2 conditionals
[tex]p\rightarrow q[/tex]1. if p, then q 2. if q, then p
1.if a month has exactly 28 days, then it is February
2.if it is February, then a month has exactly 28 days
I hope this helps you