Please help!! I just can't figure these questions out... and yes I have taken notes, I just can't figure these answers out. !

7. y = 1/4 • cos ( -θ/3 + 90 )
8. y = 4sin θ/4 + 1
9. y = 3cos θ/3
10. y = cos ( θ/3 - 45 ) + 2

find the Amplitude, Period, Minimum, Maximum, Midline, Domain, and Range for each of these^

I seriously appreciate you for helping out!! <3
I may or may not have already failed these questions twice...