Arestaurant bill is $25, and a 20 percent tip should be given to the waiter. which expression can be used to find the total amount that will be paid?

1.$25x0.02

2.$25x0.20

3.$25x1.20

4.$25x2.00

The expression which represents the total amount which will be paid is:

                 3.    $25x1.20

It is given that:

A restaurant bill is $25, and a 20 percent tip should be given to the waiter.

The tip which is to be given to the waiter is:

 20% of 25

=  0.20 of 25

=  0.20×25

Hence, the total amount which is to be paid is:

Amount of bill+Tip given to the waiter

Total amount= 25+0.20×25

Total amount= 25(1+0.20)

Total amount=  25×1.20

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".