Final answer:
The predicted height of the plant 5 days from today, using the expression 1.5t + 20, is 27.5 centimeters.
Step-by-step explanation:
To find the predicted height of the plant 5 days from today, we plug in t = 5 into the expression 1.5t + 20:
- Calculate 1.5 × t: 1.5 × 5 = 7.5
- Add this value to 20: 7.5 + 20 = 27.5
So, the predicted height of the plant 5 days from today is 27.5 cm.