Answer:
12.3456790123
Step-by-step explanation:
its hard to explain but you could always use a clculator and no I did not use one. But these are hard I'm a math major
Answer:

Step-by-step explanation:
The given system of equations is now reduced:
1)
,
,
,
Given
2)
By 1)
3)
2) in 1)
4)
By 1)
5)
4) in 3)
6)
Algebra
7)
Algebra
8)
7) in 4)/Algebra
9)
7) and 8) in 2)/Algebra
10)
9), 1), 7) and 8)/Algebra/Result
Answer:
4
Step-by-step explanation:
look at the points that are intersected by the line. the first one is (2,8). put it in as Rise/Run to find the slope. you "rise" 8, and "run" 2
so 8/2 is the slope.
usually you need to simplify it.
8/2 = 4
Its 8
not sure how to show the work but drew a pic and its 8
Answer:
B
Step-by-step explanation:
we can see that the two lines intersect at the point (1,2)
thus this is the solutions to both lines which is answer B