Amy had a $9.78 monthly fee for music streaming due when she received her paycheck. After paying for the music streaming
service, she had $65.02 remaining from her paycheck. Write and evaluate a
subtraction expression to determine the original value of Amy's paycheck.

its a straight line parallel to the time axis

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

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.

i think it’s a i believe