14. Margaret is placing a picture on a wall that is 7 feet long. The picture is 27 inches across and will be hung in the center of the wall, as shown in the drawing.
What is the distance, IN INCHES, from one edge of the wall to the
picture?
A. 90 inches
B. 63 inches
C. 58.5 inches
D. 31.5 inches
7 Eft

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

answer: answer is b.

[m < b = 120º]

step-by-step explanation: