5 (1 point) Z-Mart purchased $3,000 worth of merchandise on credit. Transportation costs were an additional $100, paid cash to the cartage company on delivery. Z-Mart returned $300 worth of merchandise and paid the invoice on time, and took a 2% purchase discount. The amount of this payment was 1) $2,646 2) $2,700 3) $3,000 4) $3,100 5) $2,900