Answer:
9x+9
Step-by-step explanation
Combine like terms (6x and 3x, 2 and 7)
Answer: -1.7
Step-by-step explanation:
Given : Another home business has an average income of $1.200.00 per month with a standard deviation of $100.00.
i.e.

Let x represents the monthly income.
Since . 
For x= 1030 , we have

Hence, the required z-score = -1.7
Answer:
41.67 % ( to 2 dec. places )
Step-by-step explanation:
Since 2 dozen cookies were baked, that is 24 and 14 were left.
Then 10 were eaten.
Calculate the percentage eaten as
percentage =
× 100%
percentage eaten =
× 100% ≈41.67%
Answer:
2.507* 10^-4
Step-by-step explanation:
0.0002507
We need to have one number to the left of the decimal
We move the decimal 4 places to the right
Since we moved the decimal to the right, the exponent on the power of 10 is negative
2.507* 10^-4