1. Closed
2. IDK
3. No, because the first inequality says x is lesser than 5 but the second one says x is greater. X can't be both greater and lesser at the same time.
4. X>12
5. X
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6. y<-8
7. 2.3 + w>18
8. -4t
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9. b - 4.2 < -7.5
10. 2x
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11. 4 + 8
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- Correct
12. 5(-5) > -15 = -25 > -15 = Incorrect
Its the last one because you plug in the 20(x) for example y=20x
and your table looks like this
x 0/2/4
y 0/40/80 y x
because 20(2)=40 then you would do the same with the rest of the equation
20(4)= 80 there fore the last on is your answer