Answer:
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Step-by-step explanation:
One-fourth equals 90 degrees.
<span>7 billion is 10 times greater than 700 million.
7,000,000,000/700,000,000=10</span>
3x + 2y = 12 5x - 2y = 4
-3x -3x -5x -5x
2y = 12 - 3x -2y = 4 - 5x
divide by 2 on both sides divide by -2 on both sides
y = 6 - 3/2x y = -2 + 5/2x
Given that 4x+2>14, so
4x>12
x>3
Also, -21x+1>22, therefore
-21x>21
21x>-21
x>-1
Therefore, x≧0