Answer:
2% of $42,000 = $840
Step-by-step explanation:
f(x)=3x
1) China
2) India
3) United States
4) Brazil
x=18.2
y=21.7
(18,21)
−20x + 15y = −40
20x − 8y = 192
7y=152
y=21.7 , -20x+325.5=-40
-20x=-365.5
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