Answer:
the answer option is a. because there are
15 zero's
10 one's
6 two's
4 three's
3 four's and
2 five's
so it matches with the option a.
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The simplified expression of
is 
<h3>How to simplify the expression?</h3>
The expression is given as:

Expressions raise to power 0 is 1.
So, we have:

Apply the law of indices to expression with common base

Evaluate the sum and difference

Remove the bracket

Hence, the simplified expression of
is 
Read more about exponents at:
brainly.com/question/847241
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Answer:
56.5
Step-by-step explanation:
its just division
What figure is there, nothing is shown. Name?