8.7
a) comments
b) prompt method, window object
c) if
d) binary operators
e) alert method, window object
8.8
a) window.alert( "Enter two numbers") ;
b) a = b * c
c) // program performs a sample payroll calculation
8.9
a) true
b) true
c) true
d) false - h22 is valid
8.10
a) division and modulus
b) the innermost pair
c) variable
8.11
a) x = 2
b) The value of x + x is 4
c) x =
d) 5 = 5