The time at which the cost for the services of the two companies would be in exactly 6 days. If we would compare the two charges, we would see that company A just charges 40 per day while B has a charge of 60, which is a standard fee, and a rate of 30 per day. So if we compute 40 x 6, we will have a total cost now of 240. If we compute 30 x 6, we will have a total cost now of 180 plus 60 which is the standard fee, and we will get 240. So in 6 days, the rates of the two companies would both accumulate to 240.
189 because 20.7 rounds to 21 and 9.18 rounds to 9
21 * 9 = 189
The inverse would make the inputs the outputs (switching the x's and y's) because plugging in 4 into the inverse would somehow output 4 and 5, the inverse could not exist. plug in the inverse points to see that the vertical line test would fail.
b must be equal to -6 for infinitely many solutions for system of equations 
and 
<u>Solution:
</u>
Need to calculate value of b so that given system of equations have an infinite number of solutions
Let us bring the equations in same form for sake of simplicity in comparison
Now we have two equations
Let us first see what is requirement for system of equations have an infinite number of solutions
If 
and 
are two equation
then the given system of equation has no infinitely many solutions.
In our case,
As for infinitely many solutions 
Hence b must be equal to -6 for infinitely many solutions for system of equations and
Answer:
F(x) = 5x + 7
F(5) = 5*5 + 7 = 25 + 7 = 32
