Javier wants to buy a new video game that costs $62.00. Last week he saved $20 for the game. If he earns $9 per hour at his part-time job, which equation can be used to find the number of hours, h, Javier needs to work
to have enough money to buy the video game?

5 hours

Step-by-step explanation:

62-20=42,then 9×5=45, next 45-42=3, so 3 dollar a left

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".