Respuesta :

Answer:

Choice B

Step-by-step explanation:

He is currently 40 inches in height.

He needs to be 48 inches in height to ride the roller coaster.

He is growing 1.2 inches per month (m)

So, 40 + 1.2m ≥ 48

40 inches + average gain per month has to be greater or equal to (≥) 48 inches.