If you’re Talking about exponents, you do what’s in the parentheses first, 5^3×5^2 which will be 5^5 because you are adding exponents when multiplying by the same base. Then you multiply The exponents 2 and 5 because when you are multiplying exponents that are in parentheses you multiply the exponents and leave the base the same.
Ps. I’ve added a picture with the rules, I hope this helps
It would be 26 because half of 52 is 26 and because you are looking for the spades plus the hearts is u what that in half too and just want on or the other just divide 26 by 2