Using the concept of number line, the solution to the questions posed are :
- <em>Pool</em><em> </em><em>surface</em><em> </em>
- <em>The</em><em> </em><em>height</em><em> </em><em>of</em><em> </em><em>slide</em><em> </em><em>is</em><em> </em><em>12</em><em> </em><em>meters</em><em> </em><em>above</em><em> </em><em>the</em><em> </em><em>pool</em><em> </em><em>surface</em><em> </em>
- <em>The</em><em> </em><em>level</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>bottom</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>pole</em><em> </em><em>should</em><em> </em><em>be</em><em> </em><em>marked</em><em> </em><em>as</em><em> </em><em>-</em><em>3</em>
The pool surface would be treated as sea level surface, such that, position below are marked as negative and position above are marked as positive.
- Therefore, the surface of the pool is <em>marked</em><em> </em>as the sea level position, 0.
- Since the slide is above the surface of the pool, it's value will the positive. Hence, the height of the slide is 12 feets.
- The marked position is below the <em>pool</em><em> </em><em>surface</em><em>,</em><em> </em>hence, it will take up a negative value of - 3 feets.
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For your first question:
your answer is D. She drank the most on October 12th and the least on October 2nd.
On October 12th, she drank 12 juice boxes, while on October 2nd she drank only 2.
Answer for the second question.
your answer is D) Point B. x is the line that goes from left to right, and y is the line that goes up down. To find (1,3), 1 is your x and 3 is your y. so when you match it up, you get Point B.
hope this helps
It's the second one y=-2x
Answer:
you don't save any money, you lose money instead
Explanation:
Given,
At 54, there is a tax rate of 28%
At 59½ there is a penalty of 10% with the tax rate of 28%
Therefore at 54, money left after tax = $45000*(1-0.28)=45000*0.72=$32400
At 59½, money left after tax =$45000*(1-0.10)*(1-0.28)= 45000*0.90*0.72=$29160
Money lost =29160-32400= -$3240
Here is your answer:
In order to solve this equation you need to use PEMDAS, and you would see that P goes first, which means the "(9 - 8) goes first" because P stands for parentheses.
The answer should look like this:

- Using PEMDAS you will see that P goes first:




Hope this helps!