2 answers:
Answer:
y = 90
Step-by-step explanation:
You can use proportions to answer this question.

Cross multiply 30 to -9; -3 to y

Isolate <em>y</em> by dividing -3 on both sides

Answer:
90
Step-by-step explanation:
30/-3 = ?/-9
Cross Multiply-
30 × -9 = -270
-3 × ? = -3
-270 ÷ -3 = 90
y = 90
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Answer:
B) h(x) = –2x + 200
Step-by-step explanation:
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g(x) = 5x + 200
f(x) - g(x) = 3x + 400 - (5x + 200) = -2x + 200
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Step-by-step explanation:
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