There were 50 total bottle drinks in the refrigerator. 17 were sodas, 18 were juices and the rest were waters. Write the ratio of waters to the total drinks in simplest form.

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".

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: