Answer:
3. I would say shop one because it's at a lower price. Although, it is up to you.
Explanation:
Roger wants 400 copies; First print shop; $21.50 for first 200 copies + $10 for every 100 additional copies. Second print shop; $0.15 per copy + no deals on bulk
1. how much will cost roger at the first print shop?
$21.50 + $20 = $41.50 for 400 copies
2. how much will it cost roger at the second print shop?
$0.15 x 400 = $60