Decrement operator, −−, decreases value of variable by what number?

Decrement operator, −−, decreases value of variable by what number?

2) What will be the value of "x" after execution ?

int x = 0, y = 0 , z = 0 ;
 x = (++x + y-- ) * z++;

3) When one of the operands is real and the other is integer, the expression is called a ……………………. expression.

4) To change the order in which expressions are evaluated …………………. are placed around the expression that are to be evaluated first.

5) If int x=15; y=20; what will be the value of x after executing the following statement

 x=(x