To find the mean transaction amount. We need to understand mean first.
Mean (or average) is a number that expresses the central value in a set of data, which is calculated by dividing the sum of the values in the set by their number of values.
Here, the transactions shown are
$250, -$60, -$94, $300, and -$186. So there are 5 transactions.
Now mean transaction amount is given by:
So, the mean transaction amount over 5 transactions is $42.00.
The answer for this question would be 28
First thing to do is to solve each of these for y. The first one is y=-4x-3; the second one is y=4x-21; the third one is y=4x+21; the fourth one is y=-4x+3. From that you can tell the positive slopes are found in the second and third equations. Those are the ones we will test now for the point (3, -9). y=-9 and x=3, so let's fill in accordingly. The second equation filled in is -9=4(3)-21. Does the left side equal the right when we do the math? -9=12-21 and -9=-9. So the second one works. Just for the sake of completion, let's do the same with the third: -9=4(3)+21. Does -9=12+21? Of course it doesn't. Our equation is the second one above, y+9=4(x-3).
A & C
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Answer:
m=d/7−n/7
Step-by-step explanation:
