Acollege survey was taken to determine where students study. of 132 students surveyed, 78 studied in the cafeteria, 64 studied in the student lounge, 22 studied in both the cafeteria and the student lounge.
of those interviewed how many studied only in the cafeteria ?

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".

i dont know

step-by-step explanation:

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homozygous. one is homozygous, while two is heterozygous.