Graph the equations....

1 answer:

7 0

(16)m=−7,b=2 where m is the slope and b is the y-intercept
(17)m=5,b=4 where m is the slope and b is the y-intercept
(18)m=−1,b=9 where m is the slope and b is the y-intercept
(19)m=15,b=0 where m is the slope and b is the y-intercept
(20)m=−23,b=1 where m is the slope and b is the y-intercept
(21)m=43,b=−5 where m is the slope and b is the y-intercept

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Step-by-step explanation:

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Answer:

$Z= 75*6 -250=200$

So then the correct answer is B. $200.

Step-by-step explanation:

Notation

Let X be the average contribution size before John makes his contribution.

Let Y be the total contribution size before John makes his contribution.

Let Z be John's contribution.

We know that for this case $ 75 represent the original average amount before the contribution with 50% increase so we can set up the following equation in order to find the original average amount

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