Answer:11
Step-by-step explanation:
5x-6-x+9
When x=2 we have
5(2)-6-2+9
10-6-2+9
10+9-6-2
19-6-2=11
Answer: D: 
Step-by-step explanation:


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Answer: If my calculations are correct, it'd be 160% percent decrease
Step-by-step explanation:
you subtract 640 and 480, 640%-480%= 160%