2. Suppose you have a program that runs in 100 seconds on a particular computer, and profiling of the execution time indicates that 25% is for multiplication, 50% is for memory access, and 25% for other instructions. a. Determine the speedup for these enhancements to the computer. i. Make multiply instructions run four times faster. ii. Make memory access instructions run two times faster. iii. Make both enhancements i and ii.