Answer:

Step-by-step explanation:
2/3= 0.66666
Dividing the given value to obtain the decimal value gives:

The last number is 7 which is greater than 5 this will increment the previous number by 1.
As,the previous values are also '6', so this step will continue till three significant figures.

So the value rounded up to 3 significant is 
2y^4 and 5y^4 because same variable (y), same degree (3)
Hello
The place value is 9 hundred thousand or 900,000
Hope this helps
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Answer:
=
1
=
−
4
Step-by-step explanation: