Final answer:
Sarah's tomato plant grew by 11 inches over the month, as it increased from 19 inches tall to 30 inches (converted from 2.5 feet) tall.
Step-by-step explanation:
Sarah measured the height of her tomato plant at the beginning and end of the month to determine its growth. Initially, the plant was 19 inches tall. By the end of the month, the plant reached 2.5 feet. Since there are 12 inches in a foot, we convert the final height to inches by multiplying 2.5 feet by 12 inches/foot, giving us 30 inches. To find the growth, we subtract the initial height from the final height.
Calculation:
Final height in inches = 2.5 feet × 12 inches/foot = 30 inches
Growth = Final height - Initial height = 30 inches - 19 inches = 11 inches.
Therefore, Sarah's tomato plant grew 11 inches over the month.