Classify each number as an integer or a not an integer.
-2.5
Integers
3
8.1
-5

3

Step-by-step explanation:

an integer is a number without any decimals or fractions like 7 or 3.

An integer does not include decimals or fractions.

Integer: -5 and 3

Not an integer: -2.5 and 8.1

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.