I’m so lost on how i got this wrong 22

C

Step-by-step explanation:

Y=7x doesn’t work because on the second row of the table 7*2 doesn’t equal nine. After looking it that way make sure all the rows fit into the equation and after doing that u get c. Hope this makes sense

C

Step-by-step explanation:

5+(2×1)=7

5+(2×2)=9

And so on

i am sure it will be 90 degrees.

step-by-step explanation:

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".