A scale drawing for a restaurant is shown below. In the drawing, 3 cm represents 4 m.
Assuming the dining hall is rectangular, find the area of the real dining hall.

32 m^2

Step-by-step explanation:

First find the real dimensions of the dining hall

The scale factor is 4m /3 cm

6 cm * 4m / 3cm = 8 m

3 cm *  4m / 3cm = 4 m

The area of the dining hall is

A = l*w

A = 8m * 4m = 32 m^2

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".

entering that problem on the tube might get you an answer