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.

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

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

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6