Answer:
The estimated total change in distance from where they started at the surface is +29 feet.
The total change in distance from where they started at the surface is 29.36 feet
Step-by-step explanation:
Given : The instructor takes the group 51.89 feet below the surface to start.
i.e. -51.89 feet below surface
Then they go up 29.36 feet , represented by 29.36
Here 51.89 ≈ 52
29.36 ≈ 29
The estimated total change in distance from where they started at the surface. = +29 feet
The total change in distance from where they started at the surface = 29.36 feet
Complete question:
A group of students go out on a boat to go scuba diving. The instructor takes the group 51.89 feet below the surface to start. Then they go up 29.36 feet and stop to see some fish. Estimate the total change in distance from where they started at the surface. Find the total change in distance from where they started at the surface.