K+3=-9
k=-12 is the answer
<h2>
Hello!</h2>
The answer is:
The piece of paper measures 30.48cm (centimeters)
<h2>
Why?</h2>
We need to convert from inches to centimeters, we can do it using the following convertion factor:

Now, calculating we have:

Hence, we have that the piece of papers measures 30.48cm (centimeters)
Have a nice day!
(36÷3)-4.5
x=12-4.5
x=7.5#
*I'm not quite sure* I'm really sorry if it is wrong
The mean is the average.
To solve for the average we add all the numbers up and divide by how many numbers there are.
21, 23, 25, 25, 26, 28, 28, 28, 31, 33.
268 total, now divide by how many numbers there are.
268/10
Your mean is 26.8