Answer:
C = 3b
Step-by-step explanation:
If each bottle costs 3 dollars, then the cost of b bottles would be 3b.
4,100 meters. Hope it helped
Answer:
m = 
Step-by-step explanation:

Yes they can just think of numbers with opposite signs
I-5I=I+5I the absoulte value is 5
31 seconds it will take to get around without it stopping