"how many grams of polyunsaturated fat are in one graham? "

, you so much. i need to understand what to do to get my again, !

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.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3