If the ratio is 14 childen to every 5 teachers, and there are thirty teachers... there are 84 children. hope I could help!
C.) is the best answer others are less then 50%.
C.) $35 is $15 more then 20 this is over 50%
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5^(x² - 2x) = 1
5^(x²) - 5^(2x) = 1
5^x² - 5²x = 1
4y + 3 > 23 subtract 3 from both sides
4y > 20 divide both sides by 4
y > 5
-2y > -2 divide both sides by -2 (the order changes)
y < 1
(-oo, 1) ∪ (5, oo)
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SO SORRY IF THESE IS WRONG:(( JUST SAY IT TO ME NOT TO BULLY ME