Q' = 3Q - 3, what is the value of (4')' ?
Choose the correct answer.
A) 48
B) 57
C) 66
D) 72
E) 81

Rationale: "( 4 ' ) ' = ( 3 * 4 - 3 ) ' = 9 ' = 9 * 9 - 9 = 72 answer d"
Answer: D