P is four times as old as Q, and Q is four years older than R. If R is z years old, what is P’s age in terms of z?  Pick one.
A) 4z + 16  B) 4z + 4  C) (z+4) / 4  D) 4z - 4  E) 4z - 16
P = 4Q   Q = R+4 = z+4= 
<gadget id="calculator">+4</gadget>
<output>4</output>
4(z+4)= 4z + 16   The answer is 4z + 16.
<result>A</result>
P is four times as old as Q, and Q is four years older than R. If R is z years old, what is P’s age in terms of z?