Me neither. I used to know, good luck!
Answer:
7
Step-by-step explanation:
because y is square by green and 7 is also green I guess
Your answer is:
2n-4
Step by step:
(n+8)+(n-12)
Rewrite and remove the parentheses
n+8+n-12
Calculate
Therefore your solution is:
2n-4
Answer:
40.43
Step-by-step explanation:
The mean is the sum of all the numbers divided by the number of numbers.
Sum of the numbers = 23.4 + 35.6 + 73.1 + 58.0 + 18.7 + 33.8 = 242.6
Number of numbers = 6
Hence, mean = 
This is the mean , 40.43, rounded to nearest hundredth.