In how many ways can the letters a, c, e, g, k, s be arranged?

720 different ways

Step-by-step explanation:

Here is a way to help you:

6! is what you use to figure it out.

6! = 6 x 5 x 4 x 3 x 2 x 1 = 720

720 different ways

what does x eaqual

step-by-step explanation:

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.