A rectangular solid is built by stacking 1x1x1 cubes on the figure shown. What is the total number of 1x1 squares that cover six faces(surfaces) of the rectangular solid? A.) 120
B.)112
C.)196
D.)144

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

x=6 and x=3

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i’m sorry but i don’t know sorry