Jenna bought a bike for $200. the value of the bike decreases by 5% each year. write an equation to model the situation.

(200 - (200 x 5 / 100))^Y

Step-by-step explanation:

As the initial value of the bike is $200, that would be a fixed number in our equation. Each year, this will lose 5% of its value, therefore, it would be another fixed value in it. Then, we have to exponentiate it by the number of years that have passed since the initial value (Y). As a result, the equation to model the situation would be this one:

(200 - (200 x 5 / 100))^Y

C. {3,5,7,9}  

Step-by-step explanation:

The domain of a function is the set of inputs, or x-values, of the function.

The x-values listed in this function are 3, 5, 7 and 9; this means the domain is {3, 5, 7, 9}.