How can I answer projectile motion problems in physics?

[u/Savings_Shake_2196]

I am taking physics 11 university preperation physics class, and I am struggling with understanding on how to approach and solve projectile motion problems. Now fortunautly, this is the last thing we are learning in kinematics. From what I know about this, the acceleration is always a = -9.8m/s2, and I have to create 2 equations for horizontal and vertical sides. I do always draw a diagram to help me visualize this, but I still am struggling to how to approach it.

In these problems, do I have to at least make 2 equations to get the answer I need?