Question

you want to buy pencils for math class.at cvs you can get 12 pencils for a dollar. at daune reade you can get 30 pencils for two dollars in 70 cents where do you go for pencils
thats the problem

Answer 1

\[\huge 12P_{c}=1\qquad \qquad 30P_{d}=2.70\]
Solve for P (the price for each pencil), determine which one is smaller. That's the store you want to purchase from.

Answer 2

Problem:
you want to buy pencils for math class.at cvs you can get 12 pencils for a dollar. at daune reade you can get 30 pencils for two dollars in 70 cents where do you go for pencils

You can approach this by finding how much one pencil costs at each place.

At Duane: 12 pencils for $1.00
At CVS: 30 pencils for $2.70
You can use division to see which place has the cheaper per pencil price.

Here's another shortcut that I noticed.
How much will it cost to buy 30 pencils at Duane.
30 pencils would be 2 and one-half batches of 12.
So if one batch is $1, then what would two and a half batches be?
Then compare that to $2.70 at CVS.