The number of bacteria in a petri dish on the first day was 252
cells. if the number of bacteria increase at a rate of 57% per day, how many bacteria cells will there be after 7 days?

19200 i think. sorry if its wrong <3

Step-by-step explanation:19200 oh no no no

gaddgad

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".