Mr. Larson bought a bag of chocolate. Of course, his kids want some. Mr. Larson is wise enough to get his 8 pieces first. He then divides the remaining pieces among his 9 kids and each kid ends up with 8 pieces. How many pieces were in the bag to start with?

80?

Step-by-step explanation:

if there are 9 kids and every kid ends up with 8 pieces, then you do 8x9 which is 72. ut then you add 8 bc larson got his pieces.  so the answer is 80 im pretty sure

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.