Which statement best describes the function below? f(x)=x2-x2-9x+9 O A. It fails the vertical line test OB. It is a many-to-one function. O C. It is a one-to-one function. O D. It is not a function.

d

Step-by-step explanation:

iy is not a function

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .

so, converting firstly the mixed fractions to improper fractions and then "adding".