A crate is shaped like a rectangular prism. The crate is 1.2 feet wide, 3 feet long, and 4.5 feet tall.
You want to paint the sides and the top of the crate. What is the surface area in square feet
that will be painted?
A. 37.8 112
B. 55.5 112
C. 41.4ft
D. 33.3 112

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".

step-by-step explanation:

12475909

21

jk it's 20

step-by-step explanation:

the answer is d

step-by-step explanation: