Dave is hanging dry wall in a house with square rooms. He competes on average 2/3 of a wall in 1/2 of an hour. What is Dave's rate of completion expressed in walls per hour? A. 1/3

B. 3/4.

C. W 1 1/6,

D. 1 1/3.

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The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this