Word problem for linear

Question

Lane is tracking the progress of her plants growth today the plant is 5 cm her the plant grows 1.5 cm per day bender equation represents the plants hi after any given number of days how tall with a Plan B after nine days

Answer 1

Height = 5 + 1.5*n where n is the number of days

n=9, 5 + 1.5*9 = 5 + 13.5 = 18.5