D 40% 3) There are 640 students who attend Washington College Prep. 75% of the students play a sport. How
many students at Washington College Prep play a sport? Draw a percent bar to show your answer.
A 160 students
B 448 students
C 450 students
D 480 students

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".

the answer is a

step-by-step explanation:

what's the question?

step-by-step explanation:

there is no question.

a

step-by-step explanation:

strong negative correlation