Atile factory earns money by a flat fee for delivery and sales price per tile sold. for one customer the tile factory shipped 10,000 units of retail stores at the rate of $0.25 per tile. the total tile factory earned from that sale was 3000 which of the following equation describes the revenue of the tile from 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