5x + 7x = 180 ⇒ properties of linear pair
12x = 80 ⇒ addition property (since (5 + 7)x = 12x)
x = 15 ⇒ Division property (since we divide both sides by 12)
To find the test statistic or z-score given sample number (n), sample mean (x), standard deviation (σ), and population mean (μ), we can use

Given that n = 36, x = 24.6, μ = 20, and σ = 12,


From this, we see that the test statistic is 2.3.
Answer: 2.3
The cube root of 3 is 1.44224957031
Well, to find the slop regardless, you do (Y2 - Y1) Divided by (X2 - X1). It is the same thing when finding the slope of any line.
Ex: (4,5) and (8,6). What is the slope? (6 - 5) / (8 - 4) = 1/4 <--- Slope
Please leave a thanks because you are welcome. Hope this helps :)
24 ten thousands means 24 x 10, 000 which is equivalent to 240, 000. see attached file for the illustration.