Answer:
4.8 miles per hour.
Step-by-step explanation:
12:2.5
2.5/2.5=1
12/2.5=4.8
They both talk for a different amount of time
The answer should be C. By combining like terms you can find the answer. 1.75a+2.75a = 4.5a
2.25b + 1.75b = 4b
2.25c + 1.25c = 3.5c
