Answer:
We know that the plant grows by 3 inches each week (7 inches - 4 inches = 3 inches, and 10 inches - 7 inches = 3 inches). Therefore, after 5 weeks, the plant will be 4 inches + (3 inches × 5) = 19 inches tall.
Explanation:
- The plant is 4 inches tall when Dana buys it.
- After one week, the plant grows by 3 inches to reach a height of 7 inches.
- After a second week, the plant grows by another 3 inches to reach a height of 10 inches.
- So, the plant grows by 3 inches each week.
- After 3 weeks, the plant will be 10 inches + 3 inches = 13 inches tall.
- After 4 weeks, the plant will be 13 inches + 3 inches = 16 inches tall.
- After 5 weeks, the plant will be 16 inches + 3 inches = 19 inches tall.
Therefore, the correct answer is d) 19 inches tall.