Suppose a computer M3 has an average CPI of 2.7 and a clock rate of 3.7 GHz. Please answer the following: (a) Calculate the runtime for a program P with 22,933 instructions, which uses an accelerating co-processor 45 percent of the time, and (b) determine how much faster (or slower) the accelerator needs to run for P to run 1.5 times as fast on M3 with the faster (resp. slower) accelerator.