Final answer:
To calculate the total height of the plant after 5 months, add the initial height of 60 inches to the total growth over 5 months (30 inches/month × 5 months), resulting in 210 inches.
Step-by-step explanation:
The student asked about the total height of a plant after 5 months if it initially has a height of 60 inches and grows 30 inches per month. To find the total height of the plant after 5 months, we start with the initial height and add the amount of growth over 5 months. The calculation is:
Initial height + (Growth per month × Number of months)
60 inches + (30 inches/month × 5 months) = 60 inches + 150 inches = 210 inches
Therefore, the total height of the plant after 5 months is 210 inches, which corresponds to option d.