Answer:
5 (for c only)
Step-by-step explanation:
for c:
1st cleaning company: 
2nd cleaning company: 
set up as a system of equations. for them to cancle out make the y of one equation negative. I'll be making the second one negative ( it doesn't matter though)
it will look like:
make the two equations on top of eachother and line the terms up. Then combine them. The variable "y" will cancle out and you'll be left with
then you will add 3x to both sides to get 
then divide both sides by 3 to get 
if you plug in 5 for x into both of the original equations you will see that they will both make $100 in five hours. So you answer is 5
The best choice would be the option 3cm
The answer is 52 because to solve this you have to multiply 30 percent or 0.30 * 40 which equals 12 dollars then you add the 12 dollars to your 40 dollars and you get 52 dollars now that is what i call markup
Answer:
x = 13
Step-by-step explanation:
Answer : option B
Parent Graph f(x) = 
is attached below
We analyze each option
A) f(x − 2)
--> x - 2 shifts the graph 2 units to the right
B) f(x + 2)
--> x + 2 shifts the graph 2 units to the left
C) f(x) − 2
--> f(x) - 2 shifts the graph 2 units down
D) f(x) + 2 --> f(x) + 2 shifts the graph 2 units up
In the graph of f(x)= , the x intercept at x=1
From the graph attached in the question, the x intercept at x=-1
Its means the parent graph is shifted 2 units to the left.
Option B: f(x + 2)
--> x + 2 shifts the graph 2 units to the left
