Play help me
Don't take points o r I will report
And mark branist

2- 1/10=0.1; closest to zero

3- (25-4)/40= 21/40 (common denominator)

4- 12

5- (20-9)/24= 11/24 (common denominator)

6- (6+3/4) + (2+1/2) = 8+5/4= 9+1/4

7- 21+3/4 - 13+1/8 = (21-13)+(6/8-1/8) = 8+5/8

8- 8+5/12 - 5+3/8 = (8-5) + (10/24-9/24) = 3+1/24

9- 20

2.) 5/10 is closest to:  1/5 is equal to 2/10 and 1/2 is equal to 5/10 and that would mean 1/5 would be closer to 0 than 1/2 or 1. So, your right.

3.) 20-21/40 (can't be more than 40 as denomanator)

4.) LCD is 12.

5 and 6 are blurry, you can comment on what they say if you want me to answer. :)

7.) You need to subtract. (c) 8 5/12- 5 3/8 (d)

3 1/24

8.) LCD = 20

I HOPE THIS HELPED.

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".