Each can of paint will cover 450 tiles. augustin is painting 300 tiles in his bathroom, 675 in his kitchen, and 100 in his hallway. how many cans of paint does he need to buy?

You have to add all of the tiles that he needs painting.  675+300+100=1075.  Then to figure out how many paint cans you need, divide 1075 by 450.  It equals 2.388... so, you need to round up or else you will be missing some tiles.  The final answer is 3 paint cans.  Hope this helps

38 dollars is your answer.

)because it's going in order of the math sign