Question 57834
21.	Which of the following is not an expression?
A)	p(t + 7)
{{{highlight(B)}}}	p + ÷ t
C)	t•p – 7
D)	t + p + 9
:
 The reason I picked b is because of the + ÷.  You can't do both at the same time.  
Happy Calculating!!!