Answer:
1. 50%
2.100%
3.0%
4.100%
Step-by-step explanation:
Use https://www.mathsisfun.com/data/standard-deviation-calculator.html for later references.
Observe.
6/2(1+2)
6/2(3)
6/6
1
Thus, the answer is: 1
Answer: 
<u>Step-by-step explanation:</u>
(1) (12, 18, 27, ...)
The common ratio is:

The equation is:


The equation is:

8-4=4
4-(3/4)= 3.25 or 3 1/4
Answer:
See explanation
Step-by-step explanation:
3(x + 4) + 2 = 2 + 5(x – 4)
Step 1: distributive property
3(x + 4) + 2 = 2 + 5(x – 4)
3x + 12 + 2 = 2 + 5x - 20
Step 2: collect like terms
3x + 12 + 2 = 2 + 5x - 20
3x + 14 = 5x - 18
Step 3: Addition property of equality
3x + 14 = 5x - 18
3x + 14 + 18 = 5x - 18 + 18
3x + 32 = 5x
Step 4: subtraction property of equality
3x + 32 - 3x = 5x - 3x
32 = 2x
Step 5: division property of equality
32 = 2x
32/2 = 2x/2
16 = x
x = 16