Answer:
630,400,000
Step-by-step explanation:
630,379,982
The 3 above that is bold, between the 0 and the 7, is in the hundred thousands place.
To round to a place, change all digits to the right of that place to zero. If the digit immediately to the right is 0 through 4, you're done. If the digit immediately to the right is from 5 to 9, then you raise the digit you are rounding to by 1.
Step 1. Make all digits to the right of the hundred thousands digit 0.
630,300,000
Step 2. Since the digit immediately to the right of the hundred thousands digit was a 7, which is from 5 to 9, the digit we are rounding to goes up by 1. The 3 becomes 4.
630,400,000
Answer: 630,400,000
68% is around 70%
70% of 1 is 0.7
0.7'*3=2.1
Hope this helps :)
Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Subtract 18 From Both Sides
[ Step Two ] Simplify
[ Step Three ] Solve With Quadratic Formula
Note: 
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[ Step Four ] Combine Solutions
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She owes him $0.75 because if she paid him $1.50 already you just subtract that from $2.25
Answer:
a) only extreme values are used in its calculation.
Step-by-step explanation:
In a data set, the range is given by the subtraction of it's highest value by it's lowest value.
The disadvantage is that it gives a high weight to extreme values, not focusing on central values. So the correct answer is given by option a
