Final answer:
After adding the initial descent of 25.25 feet and additional descent of 10.5 feet, then subtracting the ascent of 12.95 feet, the diver's new depth is 22.8 feet. The closest answer option is A. 22.7 feet.
Step-by-step explanation:
To find the diver's new depth, we need to calculate the total descent and ascent. The diver initially went down 25.25 feet below the surface and then 10.5 feet further down. This can be added together to find the total descent.
- Initial descent: 25.25 feet
- Further descent: 10.5 feet
Add the two depths to find the total descent:
Total descent = 25.25 feet + 10.5 feet = 35.75 feet
Next, the diver rose 12.95 feet:
Rise: 12.95 feet
We subtract the rise from the total descent to find the new depth:
New depth = Total descent - Rise = 35.75 feet - 12.95 feet
New depth = 22.8 feet
The answer closest to our calculation is Option A. 22.7 feet.