I think the answer would be the second one or B. the number of hours billed
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
Given:

For point A:

For point B:

For point C:

For point D:

Answer: it is 12 hours
Step-by-step explanation: hope it helps
The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Given that x + 8 = 15
Hence:
x + 8 - 8 = 15 - 8 (subtraction property of inequality)
x = 7
The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
Find out more on equation at: brainly.com/question/2972832
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