SELF-CHECK
For 120 units at 18 each plus 180 shipping, what is the modeled landed cost before taxes?

REFERENCE REASONING
120×18+180=2340 units, or 19.5 per unit. Compare the same cost boundary for all suppliers before evaluating non-price criteria.

This is a reasoning reference for the supplied fictional case, not an executed app or tested cloud deployment. Alternative approaches are valid when supported by stated assumptions and evidence.
