2.2 If you want to achieve a speedup of 80 for a computation task using 100 processots running concurrently, what faction of the computation task can be sequential according to Amdahl's law?

1.10 In general, addition of two 32-bit fixed-point numbers can be finished in one clock cycle. However, addition of two single-precision floating-point numbers usually takes more than one clock cycle. Why? Hint: explain using the operations involved in floating-point addition/subtraction. Why?