Plz do all parts thank you

Assume a program requires the execution of 50 times 10^6 FP instructions. 110 times 10^6 INT instructions, 80 times 10^6 L/S instructions and 16 times 10^6 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. By how much the CPI or FP instructions be improved if the program is to run four times faster