Solve the each part of given question:

Question: A projectile is launched with an initial speed of 45.0 m/s at an angle of 40 degrees above the horizontal. The projectile lands on a hillside 3.20 seconds later. Neglect air friction (assume the +x-axis is to the right and the +y-axis is up along the page).

Part I: What is the projectile's velocity at the highest point of it trajectory?

Part II: What is the straight line distance from where the projectile was launched to where it hits the target?

I need help to find the straight line distance from where the projectile was launched to where it hits the target.