Answer: 27.5 cm
Explanation:
Since, according to the question,
The height of the plant after t days from today,
f(t) = 1.5 t + 20
For 5 days, t = 5,
Thus, the height of plant after 5 days from today,
f(5) = 1.5 × 5 + 20 = 7.5 + 20 = 27.5
⇒ The predicted height of the plant 555 days from today = 27.5 cm