Answer:
Rosa is closer to the correct depth.
Step-by-step explanation:
To show that two measurements are nearly equivalent, we must convert one of the measurements to the other unit.
1 m = 3.281 ft

Neither is correct but Rosa is closer to the correct depth.
Answer:
and 
Step-by-step explanation:
when you solve for r in the given equation, you need to apply the square root property, which gives positive and negative answers (both should therefore be considered):

then you need to include these two possible solutions:
and 
The answer is 68 because is repeating 3 times