Answer:
4
Step-by-step explanation:

Because the powers have the same base of 2, we can apply the index law:

Therefore, 
Answer:A and B. Step-by-step explanation: C) 9 7/8 - (- 2 4/5) - (- 1/2) = = 9 7/8 + 2 4/5 + 1/2 (F). D) - (- 9 7/8 + 2 4/5) - 1/2) =.
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The given number is 0.555 which can be written as

As we see that after decimal, every next digit is 1/10 times of the current digit .
Therefore the statement , " the value of the 5 in the thousands place is ten times as great as the 5 in the hundredth place " is not correct .
Answer: X<Y, X>0
Because -4 is less than 0 and -4 is greater than 0