Someone pls rply quickly i dont have much time left

Anyone who is an expert in for the record, i’m having difficulty understanding the pictures.

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.