Write 18 1/4 as a decimal,

18.25

Hope this helps :)

Step-by-step explanation:

The first thing you do is make your fraction improper

4 * 18 = 72 + 1 = 73

So now your fraction looks like this

73/4

but it's still equal to 18 1/4

What you want to do now is divide your fractions numerator and denominator

73 divided by 4 equals 18.25

A simpler way is to remove your whole number from the equation

1/4

then turn that into into a decimal

.25

and add it to 18

18.25

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".

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.