XSeed and MightyGrow Both XSeed and MightyGrow produce residential grass seed by the standard-sized bag. The demand curves for the two firms are given by QM = 140, 000 3000PM 1200PX QX = 150, 000 4000PX 1000PM. (a) Suppose MightyGrow sets a price of $30 per bag of seed. What is XSeed's demand elasticity if it sets a price of $25 per bag? Show your calculations. (b) Will XSeed's demand become more or less elastic if MightyGrow cuts its price to $25 per bag? Explain clearly why. (c) Suppose it is an equilibrium for MightyGrow to set a price of $30 per bag and XSeed to set a price of $25. What must the marginal costs of the two firms be