Answer
Supplier B would cost $625 more than A
Explanation
Supplier A : 5.25 × 500 = $2,625
3 × 500 = $1500
Total cost = 2,625 + 1,500 = $4,125
Supplier B: 6.50 × 500 = $3,250
Total cost = 3,250 + 1,500 = $4,750
Supplier B is costly by $4,750 - $4,125 = $625