Write about the police situations that’s going on right now
Answer: 
Step-by-step explanation:
We know that Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.
Given number : 0.00023
In scientific notation 
Therefore, In scientific notation 
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This problem is odd in that no information is given regarding the relationship, if any, between x and y, and (more importantly) x can't have both values -15 and 21. Please go back and ensure that you have copied down this problem precisely as it was given you.
The answer would be b because 3+7 is 10 and multiple that by 7 is 70. and 20 plus 49 is 70