What is the maximum speedup possible according to Amdahl's Law for a program that is 25% inherently serial and 75% parallelizable using N processors for the values of N below? Show your work.

You are using an MCU that can add, subtract, and bit-shift but not divide or multiply. Using this MCU you want to find the average value of a given set of numbers. You are given the numbers {2,−43,7,19} in decimal notation. Assume 8-bit registers and 2's complement notation for signed numbers. First devise a scheme how you can find the average of these numbers using only the given operations. (a) What is the result in bits as it is stored in an 8-bit register? (b) What is the corresponding decimal value?