Answer:
A solution to a system of equations means the point must work in both equations in the system. So, we test the point in both equations. It must be a solution for both to be a solution to the system. Hope this helps.
Answer:
5 rolls
Step-by-step explanation:
The perimeter lengths are the same because it's a square. So 12 times 4 is 48. You would need a minimum of 5 rolls because each roll as a length of paper of 10 feet. So 40 feet plus 8 would round to 50. That's why it would be 5 rolls.
Answer:

Step-by-step explanation:
Given
and 
Required
Which compares them correctly

This is incorrect because 0.63 is greater

This is also incorrect because 0.63 is greater

This is also correct because 0.63 is greater

This is also incorrect because 0.63 is greater
The student should deposit atleast 3,500 to get the job done. But she can deposit a lower amount.