Answer:3
Step-by-step explanation:tw
Answer:

Step-by-step explanation:
Given
Initial Level = 340 m
Number of stages = 4
Difference in each stage = 60 m
Required
Determine the depth of the submarine after 4 stages
First, we have to calculate the total distance moved towards the surface of the sea;
This is calculated as



This implies that the submarine moved a total distance of 240 metres;
It;'s new depth is calculated as follows;



<em>Hence, its new depth after 4 stages of rising is 100m</em>
The domain of the function is 80 to 180 because domain refers to the valid inputs of the function.
After receiving $42, the new domain (<em>that Albert can afford)</em> is from 80 to 147.
Answer:
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