Respuesta :

Answer:

(1,2)      1 represents how many days and 2 represents how many mm tall

(9.18)    9 represents how many days and 18 represents how many mm tall

Step-by-step explanation:

Answer:

(1,2) in one day, the plant was 2 mm tall.

(9,18) in nine days, the plant was 18 mm tall.  

Step-by-step explanation:

(1,2) in one day, the plant was 2 mm tall.

(9,18) in nine days, the plant was 18 mm tall.  

If this helps please mark as brainliest