Number 2 is correct. For number 3, the mean is 9 and the mean absolute deviation is 1.33.
Answer:
The equation is false and has no solutions.
Step-by-step explanation:
6x + 5 = 3(2x + 1)
Distributive property.
6x + 5 = 6x + 3
Cancel like terms.
5 = 3
Subtract 3 from both sides.
2 ≠ 0
The equation is false and has no solutions.
This means that these two lines never cross, and thus there is no common solution.
Answer:
If the problem is,

By finding it,
Take a 5 box grid in which each box represents 1 unit,
Then take 1 box of this grid,
Repeat this step,
Finally, Add them,
We get,
A grid having 10 boxes with 2 taken boxes,
Thus, 
When we do these steps for three grids we will get
,
That is, by multiplying the result of
by 3 we will obtain 

Step-by-step explanation:
7.50= (1 + x/100 ) × 5.50
7.50/ 5.50 = 1+x/100
x/100 = 0.36
x= 36.36%
Answer:
Step-by-step explanation:
F multiplied by -2.
-2f