I can not work out the math on my calculator to solve these problems.

A major leaguer hits a baseball so that it leaves the bat at a speed of 31.0 m/sm/s and at an angle of 36.9 above the horizontal. You can ignore air resistance.

A: At what two times is the baseball at a height of 10.0 mm above the point at which it left the bat?Enter your answer as two numbers, separated by a comma, in the order t1, t2, where t2>t1.

B: Calculate the horizontal component of the baseball's velocity at each of the two times you found in part A. Enter your answer as two numbers, separated by a comma, in the order v1, v2.

C: Calculate the vertical component of the baseball's velocity at each of the two times you found in part A. Enter your answer as two numbers, separated by a comma, in the order v1, v2.

D: What is the magnitude of the baseball's velocity when it returns to the level at which it left the bat?