Which of the following variable declarations are correct? If a variable declaration is not correct, give the reason(s) and provide the correct variable declaration. (1, 7) 10. double conversion = 2.5; //Line 1 char grade 'B+'; //Line 2 = double 28.5 = num //Line 3 string message = ''First C++ course'; //Line 4 int age = 18 years; //Line 5 int perfectSquare; //Line 6 float x, y, decimal; //Line 7

28.

QUESTION 8 Re-write below JavaScript statement by   utilize the arrow function abandon the usage of braces return the resulting value without using the return keyword   product = function (x, y) { return x * y;}   product = function (x, y) { return x * y;}

Evaluate the following expressions, assume the following declarations: int x = 4 /3 * 2; int y = 9/ 2; int num = 6; num *= x + y; What is the value of the num after expression is evaluated?