Answer:
12. -5 and 4
13. -2 and -1
14. -5 and 6
15. -4 and -3
16. -2 and 8
17. -3 and 8
Step-by-step explanation:
The error Alex made is that he found the perimeter of the figure instead of the area.
<h3>Area and perimeter of shapes</h3>
Given the expressions
7+(3x 1.4)+5+2+(5x 14)
He used the expression to simplify the grid
The expression simplified shows that Alex added all the measures of the sides of the grid instead of taking the product of the length and width
Note that the operation Alex performed is the perimeter of the figure instead of the area hence the error Alex made is that he found the perimeter of the figure instead of the area.
Learn more on area and perimeter of figure here: brainly.com/question/443376
I think it’s how many weekdays he’s practiced soccer so it’d be 30x x being the number of days!
