A square is the same length on each side so each side would be 9
9+9+9+9= 36ft (perimeter)
Again each side if 9 feet to find the area u just multiply the length and width here the length and width are the same (9)
9•9= 81 (area)
Solving the system of equations, it is found that x = 3, that is, there are 3 128 MB memory sticks.
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We want to solve for x, thus, in the first equation, we write y as a function of x, that is:

Replacing in the second equation:





x = 3, that is, there are 3 128 MB memory sticks.
A similar problem is given at brainly.com/question/24823220
ANSWER
I. The GCF of 6 and 16 is 3. FALSE
II. The LCM of 6 and 16 is 48. TRUE
III. 6 and 16 are both composite numbers. TRUE.
EXPLANATION
The GCF of 6 and 16 is not 3.
It is rather 2.
Factors of 6: {1,2,3,6}
Factors of 16:{1,2,4,8,16}
3 is not even a factor of 16.
The LCM of 6 and 16 is 48. This statement is true.
Composite numbers have more than 2 factors.
6 and 16 are both composite numbers.
19. $30,681.82
20. Find surface area for this one
21. Use geometry