1.       Looking at your working in 1g-h, in general, if B is some binary number (such as 10102), what number do you get when you attach a zero at the right end (such as 101002). What number do you get when you attach 2 zeros at the right end? In general, what number do you get when you attach n zeros at the right end?

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.

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step-by-step explanation:

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the correct answer would be the third option