For football tryouts at a local school 12 coaches and 42 players with split split into groups each group will have the same numbers of coaches and players which is which is the highest number of groups that can be formed how many coaches and players will be in each of these groups

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".

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.