We are given :

Step 1: factor the part inside square root
The function given inside square root is of quadratic form.
So let us try to factorise it using AC method.
Here A*C = 4*25 = 100
so we have to find factors of 100 that add up to give -20.
the two factors are -10 and -10.
Rewriting the function :

=
=
=
Step 2:
Now we take square root of the factorised form

= 
Answer : (2x-5)
The slope of the function is $400.
<h3 /><h3>Definition of slope of a function</h3>
The slope of a function is the rate of change of the dependent variable with respect to the independent variable. The equation that represents a function is: y = mx + b
Where:
- y = dependent variable
- m = independent variable
- x = slope
- b = constant
Looking at the total money raised, the amount of money increases by 400. This is the slope.
To learn more about slope, please check: brainly.com/question/2491620
The shape has five edges (if your including the point at the top) and five faces
Answer: (1) mean = 9.46; standard deviation = 3.74
Step-by-step explanation: