Yes
Yes
No
No hopefully I helped
Answer:
20 New professors
Step-by-step explanation:The current ratio is 1200%2F80 = 15.
The new ratio/proportion should be %281500%29%2Fx = 15.
From here, find x = 1500%2F15 = 100 professors.
They must hire 100-80 = 20 new professors.
C
3(3a) = 9a
3(4) = 12
3(3a +4) = 9a +12
Answer:
1.0
Step-by-step explanation:
this is a aplication of the terms