Firms A$,$ B$,$ C$,$ and D enter into a financial arrangement. Money flush firm A will pay expanding firms B and C each $$1,000,000$ today. B will pay D $$2,200,000$ three years from today. C will pay B $$800,000$ two years from today and D $$350,000$ two years from today. Finally, D will pay A $$3,200,000$ six years from today. Calculate the yield rate or interest rate, to the nearest hundredth of a percent, that each firm experiences over the period of their involvement $(6$ years for A$,3$ years for B$,2$ years for C$,$ and $4$ years for D$).($Round your answers to two decimal places.$)$

I can do part a thats easy enough. but im lost on b c d