Acompany buys pens at the rate of $6.50 per box for the first 10 boxes, $5.50 per box for the next 10 boxes, and $4.50 per box for any additional boxes. how many boxes of pens can be bought for $183.00?

$6.50 x 10 = 65. (first 10 boxes)

$5.50 x 10 = 55. (next 10 boxes)

65 + 55 = 120. (the 20 boxes added up)

183 - 120 = 63.

63 ÷ 4.50 = 14. (63 ÷ by the price for each remaining box, which is $4.50)

So, 10 + 10 = 20 (first 20 boxes) then + 14 because that is the remaining boxes of pens that you can buy with $183. This equals 34.

34 boxes of pens can be bought with $183.