Atile factory earns money by a flat fee for delivery and a sales price per tile sold. for one customer, the tile factory shipped 10,000 units to a retail store at a rate of $0.25 per tile. the total the tile factory earned from that sale was $3,000. which of the following equations describes the revenue of the tile factory for this sale in terms of tiles sold? . a.. y = 0.25x + 10,000. b.. y = 0.25x + 3,000. c.. y = 0.25x + 500. d.. y = 0.25x + 0.25