Ari, Bobby, and Cathy each went for a walk yesterday afternoon. Ari walked 1, mile at a 2. 1 constant speed of 1, mi /h. Bobby walked 1 1 mi at a constant speed of 1 mi /h. Cathy walked for 1h and 21 min at a constant speed of 1, mi/h List the three people in order of the times they spent walking from least time to greatest time.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

29.5977692753

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.