Please help with attached 2 questions:

In a large company, two separate Poisson surplus processes are being monitored. In process A, reserves of UA = 3000 are available, approx- imately XA = 25 claims are expected annually, 0A = 0.20, and the typical claim XA is a (0.75, 0.25) mixture of an exponential random variable with mean u = 60 and an exponential with mean u = 20. For process B, UB = 1000, AB = 30, OB = 0.20 and XB = 50. For both of these processes, find the adjustment coefficient of the process and com- ment on the differences. Using Lundberg's inequality, determine upper bounds on the probabilities of ruin for the two processes.In a compound Poisson surplus process the typical claim X ~ I(2, 0.5). Find the adjustment coefficient R and give a bound on the probability of ruin if initial reserves are U = 25 and 0 = 0.5