1. Two stores, A and B, are open ten hours during the day. The chart shows the number of people in each store who spent more than $15 during each of the 10 shopping hours. Store A Store B 13 9 17 7 9 30 10 10 8 12 11 13 15 20 20 22 19 8 12 5 A What would be the MOST appropriate way to display this data to compare distributions? side-by-side stem plots B. parallel box plots C. double bar chart D. scatterplot C​

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".

idek

step-by-step explanation:

step-by-step :