Answer:
Hey :)
Step-by-step explanation:
It will be 1 because your multiplying it by 0
Answer:
Solution: 
Step-by-step explanation:
System of equation:
Using substitution method.
substitute into
(combine like term)
(Addition property of equality)
(division property of equality)
(Taking square root)
Substitute x into
Solution: 
Now cross check the solution using graph.
Please find attachment for graph.
Answer:
-21. -19.-17
Step-by-step explanation:
Let x be the smallest
x+2 next smallest
x+4 be the largest
4*(x) = 18+6(x+4)
Distribute
4x = 18+6x+24
Combine like terms
4x = 42+6x
Subtract 6x from each side
-2x = 42
Divide by -2
-2x/-2 = 42/-2
x = -21
x+2 = -19
x+4 = -17
D or the last one
That the point (72,34) is apart of the solution.