What will the Prolog interpreter answer to the following questions:

a)	X is 17 * 3 - 5.
b)	5 is X -7.
c)	5 * 3  is 15.
d)	15 is 5 * 3.
e)	2 >= 2.
f)	X is 5 * 3.
g)	17 - 3 =\= 6 * 4.