Justin has $450 to buy supplies for the school computer lab. he buys 8 boxes of printer paper that cost $49 each. about how much money does justin spend on the printer paper? describe how you made your estimate.

In a week, a light bulb factory produces 12,500 light bulbs. the ratio of light emitting diodes (led bulbs) to compact fluorescent lamps (cfl bulbs) is 2: 3. of the led bulbs produced, 3% were defective. how many led bulbs were not defective? a) 150b) 2,425c) 4,850d) 7,275