Simplify these expressions.
3^4 times 3^4

6,561

Step-by-step explanation:

3^4 = 81,

81 x 81 = 6,561

6561

Step-by-step explanation:

3^4 is another way of writing

3*3*3*3

3 times 3 is 9

9 times 3 is 27

27 times 3 is 81

So for 3^4 it is 81

So 3^4 times 3^4 is another way to write:

81*81 which is 6561

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.

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)