After m months, the length of a fingernail is 10+3m millimeters. How long is the fingernail after eight months? Three years?

Answer 1

L= 10+3m

L(8) = 10+3(8) = 34 mm

3 years = 3x12 months = 36 months

L(36) = 10+3(36) = 10+108= 118 mm = 1.18 meters

which is somewhat unrealistic