Can you guys ? also explain step by step. (letter b is 34cm squared)

C

Step-by-step explanation:

The area of the two triangle on the top:

area of a triangle=1/2bh

1/2(1)(4)

=2

I found the bace because the height of thecenter sqare is 5 and there are congruent triangle on the end so 7-5/2=1

Next, we multiply 2 by four because there are four triangle altogether on each end.

2x4=8

Next, the formula for the area of the center square is bh, which is 2x5=10

Finally, the two outside squares' areas would equal 40 altogether because 5x4=20x2=40cm^2

10cm^2+8cm^2+40cm^2=58cm^2

so, the answer is C

HOPE THIS HELPS!!!

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".

depending on others is critical to survival. my source is apex!

step-by-step explanation: