The variable z is directly proportional to x. when x is 12, z has the value 228. what is the value of z when x = 18

Which answer goes into the box? (90° clockwise rotation, 90° counter clockwise rotation, translation, or glide reflection)

Add: (6x^2-5x+3) + (3x^3+7x-8) a. 9x^2+12x-5 b. 9x^2+2x+11 c. 9x^2+2x-5 d. 9x^2-2x+5

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start