questions 1-6 please

hort answers 1. (10pts) Name and describe two software design methodologies. 2. (15pts) What are structured data types? Give an example from C++. 3. (15pts) Name and describe the three control structures used in developing a structured algorithm. 4. (15pts) Name three kinds of programming errors and give examples of each. When during program development is each likely to be detected? 5. (30pts) Find the 16-bit two's complement representation of the integers in Exercises 1-6. Show the detailed steps. (1). 99 (2). 5280 (3). 255 (4). 255 (5). 1024 (6). 1024 6. (15pts) Write declarations for variables p1 and p2 whose values will be addresses of memory locations in which a double can be stored. Write a statement to assign the address of integer i2 to the variable p2, or explain why this is not possible