Answer:
Option A) 2.5
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 46
Sample mean, 
= 50
Sample size, n = 25
Alpha, α = 0.05
Population standard deviation, σ = 8
First, we design the null and the alternate hypothesis
Formula:
Putting all the values, we have
Option A) 2.5
1) 330
2) 172
3) 172
4) 99
5) 142
You place the smaller number or single number on the left side of the box then on top of the box for the first square you would take the first number of your two digit number turn that into a whole number then the second number you would put on top of the second box then just multiply them both separately then add them together.
Example number one: first multiply 5x60 you get 300 for the first box then you multiply 5x6 you get 30 so then you would add the 300 and the 30 to get 330. Hope this helps :)
<span>Simplifying
9x + -2y = 19
Solving
9x + -2y = 19
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2y' to each side of the equation.
9x + -2y + 2y = 19 + 2y
Combine like terms: -2y + 2y = 0
9x + 0 = 19 + 2y
9x = 19 + 2y
Divide each side by '9'.
x = 2.111111111 + 0.2222222222y
Simplifying
x = 2.111111111 + 0.2222222222y</span>
