Please explain how I can find an answer to part a part b and part c Thank you

Two power plants are currently emitting 8,000 tons of pollution each (for a total of 16,000 tons) in City A. Marginal pollution reduction costs for Plant 1 are given by MCR1 = 0.02 0-. and for Plant 2 by MCR; = 0.03 Q2, where Q represents the number of tons of pollution reduction. A pollution tax of $120 per ton of pollution emitted is implemented a. How much will Plant 1 now pay in the total pollution reduction costs (including taxes)? b. How much will Plant 2 pay in the total pollution reduction costs (including taxes)? (2. How much will be the total pollution reduction costs (including taxes) for the two plants together? How much will be the tax payment for the two plants together