draw a number line diagram and write an expression to represent this situation: “On Tuesday at lunchtime, it was 29°C. By sunset, the temperature had dropped to 16°C.”

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".

is only a line? i think so

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: