Answer:
End behavior of a polynomial function depended on the degree and its leading coefficient.
1. If degree is even and leading coefficient is positive then


2. If degree is even and leading coefficient is negative then


3. If degree is odd and leading coefficient is positive then


4. If degree is odd and leading coefficient is negative then


(a)

Here, degree is even and leading coefficient is positive.


(b)

Here, degree is even and leading coefficient is negative.


(c)

Here, degree is odd and leading coefficient is positive.


(d)

Here, degree is odd and leading coefficient is negative.


Answer: 0.4%
Step-by-step explanation:
Total number of people 9000, divide the number of allergic reactions 36 by 9000.
36/9000=0.004
Now multiply 0.004 x 100 to reveal percent allergic reaction
0.004 x 100 = 0.4%
0.4% had allergic reactions
Problem: 2/7 (4+c)=6
1. 7/2 x 2/7 x (4+c)=7/2 x 6
2. 4+c=7 x 3
3. 4+c=21
4. c=21-4
Answer: c=17