Answer: B
Step-by-step explanation: B
The best estimate for 1,374 is 1,400 and the best estimate for 6 is 10. This is because anything that is 5 and above you change it. Example: 16 the best estimate for 16 is 20 because 6 is above 5. And when a number is 4 and below you change the number below. Example: 12 the best estimate for 12 is 10 because 2 is below 4. And when the number is perfect like 10, you can keep the number the same. Example:10,20,30,40,50,60etc.
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Answer:
123.8
Step-by-step explanation:
nearest tenth is 7 and the sixes aftr it are over half of a full decimal, so they round to 123.8
Answer:
<h2>
4.5</h2>
Step-by-step explanation:


Move constant to R.H.S and change its sign

Subtract the numbers

Divide both sides of the equation by 2

Calculate

Hope this helps..
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Answer:
I Think Yes!
Step-by-step explanation:
Cause I Also Have A Straight Teeth and Also I Don't Wear Retainer!!