Maggie has a marble with a diameter of 14 mm. She rolls her marble towards another marble that is 160 cm away. How many revolutions will Maggie's marble make before hitting the second one?

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 would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

6e14 is the answer.

step-by-step explanation:

20-2= what