10 I’m just going to write this cause it has to be 20 characters long to answer
Regardless of what anyone says, there really isn't an official name for us I guess "Web Developer" or "Web Designer."
Answer:
(25x * 4y * 2z) + (15x * 2y^3)
10xy(20z + 3y^2)
(if you want working, just comment [too much effort lol])