Answer:
Step-by-step explanation:
Good luck
Answer:
31.5 $
Step-by-step explanation:
First lets se how much 1 pound of pasta costs in the store. We do this dividing the price for 8 pounds over those 8 pounds:
12/8 = $1.5 each pound
As 21 pounds are needed:
$1.5 * 21 = $31.5
Hey there!
<h2>
ANSWER: 
</h2><h2>
EXPLANATION:</h2>

To write as power, you will see how many times you multiply the number 10.

Since it was multiplied 7 times, you would write it like this.

Hope this helps!

I think the answer is 35.82 because if you see it is 3 then is adding 4 and it makes 7 and then you have to add 7 plus five is 12 so then the answer is 35.82