Answer:
Step-by-step explanation:
You would do 21,000×0.20, which equals 4,200. Since 4,200 equals 20% of 21,000, then you would do 21,000-4,200, which equals 16,800. So the car is worth $16,800 dollars this year.
The answer is 70.
You replace x with -5.
So you get:
K(-5) = 6(-5)+100
6(-5)= -30
-30+100=70
Therefore K(-5)=70
{7/2)2