Who devised the first set of official rules for basketball?

This game is played between two teams of nine players who each have nine innings.

What are the equipments used in baseball game? Choose all that applies.

The player who stands on the mound and throws the ball to the cather.

The player who squats behind home plate and catches the pitcher's throws.

A defensive skill used to receive a batted ball and hold a base runner or batter from proceeding or prevent the opponent from earning.

Which is not an element of batting?

How many INNINGS does each team has?