Answer:
1 9/10
Step-by-step explanation:
I was first make me brainliest. :)
Variable squared minus negative 2
1) value of x =60
2) value of x = 3
Step-by-step explanation:
We need to use cross products to solve the proportions of x.

Solving:

So, value of x =60


So, value of x = 3
Keywords: Ratio and Proportions
Learn more about Ratio and Proportions at:
#learnwithBrainly
Answer:
A. Normal distribution
Step-by-step explanation:
I just did it on usatestprep
Answer: 
<u>Remove "x" and add</u>
-2 + 9 = 7
<u>Add "x" back</u>
7 -----> 7x
Note: When adding/subtracting problems like these remove "x" and then add/subtract normaly. When you get your answer put x back.