Which of these expressions is equivalent to 2f X 2f X 2f X 2f X 2f X 2f?

(2t) ^6

Step-by-step explanation:

2t * 2t * 2t * 2t * 2t * 2t?

There are 6 groups of (2t)

The base is (2t) and the power is 6

(2t) ^6

B

Step-by-step explanation:

No. of times 2t is multiplied becomes the power of 2t

(2t)⁶

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.