Choose an equation that does NOT represent a direct variation.
a.
y = x
c.
y = -5x
b.
y = 1
d.
y = 0.9x

found it xd it ok yt

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.

id

step-by-step explanation:

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i know the way

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the answer is a if my teacher taught me correct