Which of the following is not acceptable form of proof

Arectangular prism is 3 meters long, 6 meters wide, and has a height of 9 meters. what is its surface area?

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2