An old treasure map has the following instructions:
Stand next to the black rock and face
West.
Walk 20 yards and then turn 90
degrees clockwise.
Walk another 10 yards and then turn
45 degrees anticlockwise.
Walk another 15 yards, reverse your
direction and walk 5 yards back.
Turn 135 degrees clockwise and walk
another 10 yards.
In which direction are you now
facing?
(1 Point)​

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".

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction