Meg conducted a survey of four school cafeterias to find the number of students who like sandwiches for lunch. The results of her survey are recorded in the table belo

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".

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

i think that you should ask google for the answer to that problem because if we don't know it google does