Matt has 3 45 pounds of red licorice and 1 4/10 pounds of black licorice. How much does he
have in all? His sister has 4 and 9/10 pounds of
licorice. Who has more? How much more?

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.

yes

step-by-step explanation:

yes

i agree because i see the other persons thinking is clear