Answer:
Company A:
- $3 each
- 6% for shipping
- 150*3*1.06 = $477 total cost
Company B:
- $3.10 each
- 4% for shipping
- 150*3.1*1.04 = $483.60 total cost
Company C:
- $3.20 each
- No shipping charge
- 150*3.2 = $480 total cost
Least cost | Medium cost | Greatest cost
Company A | Company C | Company B
