F(4)=2(4)+1
f(4)=9
2×f(4) = 2×9 =18
The answer is 18.
Simple....
we take two points on this line...in this case..
(2,1) and (4,3)
Using:
Thus, your answer.
4 no
5 yes
6 yes
7 no
8 yes
9 no
these are guesses
Answer: An example would be...
Step-by-step explanation:
($5.40+$5)C + ($3.20+$8)xC = Total Amount.