I have two problems that i need to help solving.

Can someone solve them for me and show the work?

The Mathelte team is 37.5% female. If no additional boys join the team, what is the smallest number of girls who can join the team to raise the percentage to exactly 45%?

And the second problem is

The probability that statement P is true is 3/7, and the probability that statement Q is true is 5/12. Determine the probability that P --> Q is true.

Thanks for the help.