Question 6: Computer Abstractions and Technology You are to enhance a machine, and there are two possible improvements: either make the multiply instructions run four times faster than before, or make memory access instructions run two times faster than before. You repeatedly run a program that takes 100 seconds to execute, of this time 20% is used for multiplication, 50% for memory access instructions, and 30% for all other tasks. What will the speedup be if you improve only multiplication? What will the speedup be if you improve only memory access? What will the speedup be if both improvements are made