Final answer:
Thursday's mark on the piling is 944 inches higher than Monday's mark.
Step-by-step explanation:
To compare the height of Thursday's mark to the height of the mark Miriam made on Monday, we need to determine the difference in water level between the two days. On Tuesday, the water level was 412 inches lower than Monday. On Wednesday, the water level was 2 inches lower than Tuesday. Then on Thursday, the water level was 534 inches higher than Wednesday. To find the height of Thursday's mark compared to Monday's mark, we need to subtract the differences in water level on each day:
- Monday - Tuesday: 412 inches
- Tuesday - Wednesday: 2 inches
- Wednesday - Thursday: -534 inches (+534 inches because it was higher)
Adding these differences together, we get: 412 inches - 2 inches + 534 inches = 944 inches. Therefore, Thursday's mark on the piling is 944 inches higher than Monday's mark