Answer: well i think it is B
Step-by-step explanation:
Answer:
The bus will travel 20km within 15 minutes
Step-by-step explanation:
So, let's make these two values improper fractions so they're easier to work with. 
So, to get the rate he grew in those months we have:
And to get the rate he grew in one month we have to divide both our numerator and our denominator by 21 to get:
aka he grew 1.24 inches in a month.