Belejerdochristineanviz Belejerdochristineanviz Math Answered Test III. Choose the letter of the correct answer. 1. Which of the expression is equivalent? 1.3(2x+3) NL 6x+9 a. I and I wh b. I and IV 11. 6x+3 IV. 3(x+1) c. I and III d. II and IV