Answer:The total growth of the plant over the two weeks was 15.46 inches. In the second week alone, it grew 5.56 inches. To find out how much it grew during the first week, we subtract the growth of the second week from the total growth: 15.46 inches - 5.56 inches = 9.90 inches. Therefore, the plant grew 9.90 inches during the first week.Step-by-step explanation: