The price of a new motorcycle is $9000 , but the value of the motorcycle drops by 13% each year.

Domain:

t >= 0

Option D

Step-by-step explanation:

At year t = 0, (brand new motorcycle), the value in dollars is

v(0) = $9000

For each passing year, the motorcycle loses 13% of its original value.

This means that for t > = 0, the function produces a logical  result.

The domain cannot be all real numbers because the years cannot be negative.

Answer is option D.

i got 10.28 but that rounds up to 10.3

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.