please solve the problem fully! thank you!

1.14 Assume a program requires the execution of 50 106 FP instructions, 110 106 INT instructions, 80 106 L/S instructions, and 16 106 branch instructions. The CPI for each type of instruction is 1, 1, 4, and 2, respectively Assume that the processor has a 2 GHz clock rate. 1.14.1 [10] By how much must we improve the CPI of FP instructions if we want the program to run two times faster? 1.14.2 [10] By how much must we improve the CPI of L/S instructions if we want the program to run two times faster? 1.14.3 [5] By how much is the execution time of the program improved if the CPI of INT and FP instructions is reduced by 40% and the CPI of L/S and Branch is reduced by 30%