Evaluate the expression for p = 3 and q = 4:

pq q
- --
3 2

a) 2

b) 4
c) 6
d) 8

Substitute for p and q.
pq/3 = 3x4/3 = 12/3
q/2 = 4/2

You can't add fractions when the denominators are different. The common denominator of 2 and 3 would be 6. So multiply 12/3 by 2 and 4/2 by 3.
12/3 x 2 = 24/6
4/2 x 3 = 12/6
24/6 - 12/6 = 12/6

Simplify 12/6 to get 2.

A. 2

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