Khalid and Jesse took different overnight trains. The graph shows the relationship between the total distance Khalid travelled and the time in hours. The distance that Jesse travelled after x hours is given by the equation y = 150x.

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

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".

can i see the following ?

step-by-step explanation: