Answer:
8 months = 34 mm
3 years = 118 mm
Step-by-step explanation:
The height of the plant is given by
h = 10+3m where m is the months
At 8 months
h = 10 +3(8)
= 10+24
= 34 mm
At 3 years
we need to conver years to months
3 years* 12 months / 1 year = 36 months
h = 10 +3(36)
= 10 +108
= 118 mm