Answer:
In order, c= 3, x= -4, x= 2, m= 8, x= 25
Step-by-step explanation:
These are the answers. use pemdas for the distributive properties.
Answer: 3
Step-by-step explanation:
Let E be the event of that student pierces ear and N be the event of that student pierces nose.
Given: 

For any two event A and B, we have

Similarly , 

Hence, 3 students have piercings both on their ears and their noses.
Answer:
5
Step-by-step explanation:
To solve for hypotenuse we use the Pythagorean theorem:

In this theorem:
c= hypotenuse
a = leg
b = leg
Substitute into theorem:



(square root both sides)

Therefore the hypotenuse has a length of 5.
Please say thanks if correct :)
I believe your answer is -0.25n+0.75