How are greater than > and greater than or equal ≥ to similar?
how are they different?

They are different because the greater than or equal to symbol is used when something is greater than or equal to a number and the greater than symbol is used only for numbers greater than for example 5 is greater than or equal to 5 but 5 is not greater than 5.

Step-by-step explanation:

I hope that helped :)

They are similar because they both show if a number is greater then another, but > doesn't mean that that number could be equal.

P.S:

I tried but this probably isn't the best answer

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".