Answer:
17/42
Step-by-step explanation:
you have to add all the jobs/assistan/worlerst and then make it as your denominator and then add how many profferser and instructor there are and make that your numerator
3pi/2
(4) 3pi/8 =3pi/2
about 2.7
2y³z²
2(-1)³(3)²
=2(-1)(9)
=-18
