The mistake is in step 3:
I: −2m =−12 − 2n
II: 2m = 8 + 8n
the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first
I think it is d I am not sure but i guess it's D
Answer:
A bar graph
Step-by-step explanation:
A bar chart will give you the visual understanding of your data.It will clearly show the book with most number of pages and compare the books according to the number of pages.You can formart using different colors for each bar.
Answer:
25
Step-by-step explanation:
square 7 and 24 to get 625. Then square root it to get 25
9 squares because if there are 18 triangles in it then you divide 18 by 2 and get 9
