Maria wants to buy a sweater that had an original price of $55. The sweater is now discounted 20% and the sales tax rate is 6%. How much will Maria have to pay for the sweater? Original Price:

The amount discounted in dollars:

Subtotal:

Sales Taxes charged:

Final Cost of sweater:

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: okw

step-by-step explanation:

answerthe vertex form

step-by-step explanation:

the first one, all those points on the line just make a strait line.