Standing on the ground 35m from a building you want to

Question

Solve the following question:

Question: Standing on the ground 3.5m from a building, you want to throw a package from your 2.0-m shoulder level to someone in a window 3.6m above the ground.

Part A: At what speed should you throw the package so it just barely clears the windowsill?

Part B: At what angle should you throw the package so it just barely clears the windowsill?

I need help to find at what speed you should throw the package.