Answer:
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Step-by-step explanation:
Given

per hour
Required
Determine the expression for the cost in x hours
Represent the cost with y
y is calculated using the following expression

Where x represent the number of hours.
Substitute values for the base amount of bike and the additional cost per hour


<em>So, the expression to determine the cost of bike in x hours is: </em>
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I got 124 people visit the gym
value of k is 
Step-by-step explanation:
We are given points (k,7) and (0,8) has a slope of 1 7 . What is the value of k?
The formula to find the slope given two points is:

where x₁ = k, y₁=7, x₂=0, y₂=0
Putting values:

So, value of k is 
Keywords: Slope
Learn more about slope at:
#learnwithBrainly
I think A is 145m...
200m+ (-55m) since the submarine is under water it will be negative which ends up to be 145m