Please help with the marked question in blue

Exercises 177 e ein.ignore (100, ') cin.igmore (10o, 'n) z cin.ignore (100,&' cin >> y, Given the input: samantha 168.5 46 and the variable declaration: (2, 8) double dec 2.7 int num 45 string str = " ; What is the output, if any? Use the same input for each part. b. cin >> str >> num >> deci c cin >> dec > str num Suppose that intl and int2 are int variables, dec is a double vari- able, and ch is a char variable. Suppose the input statement is: What values, if any, are stored in intl, int2, dec, and ch if the input is: (2) a. 13 24 16.2 b. 45 $36 9.2 c. 16 75 72 What does function pow do? Which header file must be included to use the function pow? (3) 7. What does function sqrt do? Which header file must be included to use the function sqrt? (3) 8. 9. What is the purpose of the manipulator setprecision? Which header file must be included to use the function setprecision? (7) Which header file must be included to use the manipulators fixed 10. and showpoint? (7) What is the purpose of the manipulator setw? Which header file must be included to use the function setw? (7) 11. 12. What is the output of the following program? (2, 3,6,8)