Answer:
The answers are A And B.
Step-by-step explanation:
Hope you pass!
Answer:
-46
Step-by-step explanation:
Answer:
y=15x
Step-by-step explanation:
revenue=cost of hair cut(number of haircuts)
Try this explanation/solution:
a) the system which describes this situation is:

b) the solution of the system made up:

Answer: 3
3,000,000,000
Step-by-step explanation:
Billions have 9 zeros