Answer:
136.011
Step-by-step explanation:
124.01 + 12.001= 136.011
Hope this helps!
Answer:
128
Step-by-step explanation:

difference between standard deviation and mean deviation
Answer:
Standard deviation is basically used for the variability of data and frequently use to know the volatility of the stock. A mean is basically the average of a set of two or more numbers. Mean is basically the simple average of data
Hope this helps!!

Answer: -12.8x-20y+8.4
Step-by-step explanation: I multiplied the numbers in parentheses by 4.