The 3rd one
Pure tessellations- uses only one shape
Let this number be x. The next number is (x+1). And their sum is 57. Then, we have to solve this equation x+x+1=57

Emily's number was 28
Answer;
13
Explanation:
5 divided by 65 = 13
13 chairs in each row of 5 equals to 65
Answer:
4
Step-by-step explanation:
So, let's right this out:
8+24
-------------
(2 x 6)-4
When we simplify, we get:
32
----
8
Which is 4.
Hope this helped sorry if incorrect!
~Mschmindy