Answer:
Function for given situation is : 
Value of computer after 4 years = $720.3.
Step-by-step explanation:
Given that the value of a $3000 computer decreases about 30% each year. Now we need to write a function for the computers value V(t). then we need to find about how much will the computer be worth in 4 years.
It clearly says that value decreases so that means function represents decay.
For decay we use formula:

where P=initial value = $3000,
r= rate of decrease =30% = 0.30
t= number of years
A=V(t) = future value
so the required function is 
or 
Now plug t=4 years to get the value of computer after 4 years.


Hence final answer is $720.3.
Hello!
We can write this as a proportion below.

As you can see, 4 is eight times 0.5. Therefore, we can multiply eighteen by eight to get our answer.
18(8)=144
Just to check, we can cross multiply and divide.
72/0.5=144
Therefore, our answer is
144 feet.
I hope this helps!
F(x) +G(x) +H(x) = (2x -1) +(3x +2) +(x²)
... = x² +x(2+3) +(-1+2) . . . . . group like terms
... = x² +5x +1 . . . . . . . . . . . . simplify
So question one I have B , question 2 is C, question 3 is B