Answer:
Step-by-step explanation:
This is a ratio problem. there are 20 Blonde Teachers, and 12 brown haired teachers. The fraction is 12/20. We can simplify this fraction to 3/5. for every 3 brown haired Teacher, there is 5 other blonde hair teachers.
7x + 5 = 4x + 5 + 3x
(c) is m=1 i am working on the other ones
