A) Write function rule in the form of y = a(b*) that can be used to calculate the amount of penicillin remaining after any number of hours x.

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".

8496 cars

step-by-step explanation:

eww xbox also eww dayz

step-by-step explanation:

just for that im not answering

table a is wierd

step-by-step explanation:

6*f