Answer:
Step-by-step explanation:
It is B=24
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The answer is: " 12 months " .
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Explanation:
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(129 − 45) / 7 = 84 / 7 = 12 mos.
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Dividing the first equation by 2
X + 2y = 12
Dividing the equation 2 by 4
-3x + 2y = -4
subtracting both equations
4x = 16
X = 4
Also 4 + 2y = 12
2y = 8
Y = 4
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