Answer:
X ≥9 years after 2009.
Step-by-step explanation:
Y=4x+4
Y-4=4x
X=(Y-4)/4
Y=number of U.S. households, in millions.
Y≥40
Y-4≥36
(Y-4)/4≥9
So, X≥9.
10/24 x 100 = 41.66
Approximately 42% of her day
45 is 90 percent of 50. / / / 50 is (111 and 1/9) percent of 45.
Answer:

Step-by-step explanation:
Given the expressions all that is required is to expand them (using the distributive property) to see which answers they match up to:
For a:
For b:
For c calculate the square of a sum: 
(add like terms) c: 
For d: 

Answer:
The slope is 2/3 and the y-intercept is -3
Step-by-step explanation:
First you subtract 2/3 from both sides and get -3y=-2x+9. Then you divide -3 by -2 and -3 by 9 to get y=2/3-3.
Hope this helped I am not good at explaining but I did this unit like two months ago.