How much money is 18 figures?

We have that an 18 figure is a Quintilllion=10^{18}

18 figure=10^{18}

Quintilllion

From the question we are told  

How much money is 18 figures

Generally the denominations of money is   is mathematically given as

Hundred=100

Thousand=1000

Million=1000000

Billion=1000000000

Quintilllion=10^{18}

Therefore

Therefore and 18 figure is a Quintilllion=10^{18}

18 figure=10^{18}

Quintilllion

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2.

Step-by-step explanation:

I don't know if it is right but thats what i got. You didnt really give enough information for me to solve it.

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.