I have a feeling its the second one
Answer:

Step-by-step explanation:
Hello, please consider the following.
We have two equations:
(1) -2x - 4y = 20
(2) -3x + 5y = -25
5*(1)+4*(2) gives
-10x - 20y -12x + 20y = 100 - 100 = 0
-22x = 0
x = 0
I replace in (1)
-4y = 20
y = -20/4 = -5
There is one solution x = 0, y = -5
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Answer:
49 dollars
Step-by-step explanation:
700 times .07
Answer:
$388.50
Step-by-step explanation:
42 tins
$9.25/tin

So, they raised $388.50
5+3=8
Every time you draw, its minus one from denominator
1st marble red: 5/8
2nd marble green: 3/7