Step-by-step explanation:
soln.9×9×9×9
=81×9×9
=729
=6561
Let

be the statement that

Check to see that

holds for

:

Now suppose that

is true, and use that assumption to show that

must also be true. When

, you have




and so

is also true, thus proving the statement is true for all

.
Answer:
rational
Step-by-step explanation:
A repeating decimal is a rational number.
Repeating 6's has a value of 2/3, so this number is 6 2/3 = 20/3, a rational number.
Answer:
183.3333
Step-by-step explanation:
Let the number be X
Therefore
0.6X=110
X=110/0.6
X=183.3333