Help With 3 criteria count

[Esfruga]

Hello Guys

I need to make a count based on 3 criteria in the same row.

example:
Need to know how many classes did instructor with <=6 clients, after the 16:00h

Anyone can help me please?

Thank you

test.xlsx

[Pepe Le Mokko]

Post a sheet please not a picture

[Esfruga]

Done sorry,

And thanks for answer