Answers edited by e52fa787
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How do you solve
x-3y=-9
x
−
3
y
=
−
9
and
x+3y=3
x
+
3
y
=
3
by graphing?
Question #e4fb1
What happens when limestone comes in contact with an acid? Why?
How do you find the sum of the finite geometric sequence of
Sigma (5/2)^(n-1)
from n=1 to 10?