Q' = 3Q - 3, what is the value of (4')' ?  Choose one:  A) 48  B) 57  C) 66  D) 72  E) 81
(4')'=(3*4-3)= 
<gadget id="calculator">(3*4-3)</gadget>
<output>9</output>
9'=9*9-9= 
<gadget id="calculator">9*9-9</gadget>
<output>72</output>
72   Answer 72
<result>D</result>
Q' = 3Q - 3, what is the value of (4')' ?