**Answer:**

3.1*10^3

**Step-by-step explanation:**

If u know, the scientific notation formula will look somewhat like this:

a*10^b

So I implemented that into my scientific notation.

3.1*10^3=3.1*1000

3.1=3,100

Because you move the decimal point over.

So the answer is 3.1*10^3

If you're rounding to the nearest ten, it's 67,404.

If you're rounding to the nearest hundred, it's 67,449.

**Answer:**

first question is 112, second is 336

**Step-by-step explanation:**

you only need to do is 84÷3/4=112calories

this is one box of cereal state if you want three

box calories just 3×112

H and C

You have to subtract from both sides for the first one, and divide both sides for the second