6x / x²
the reciprocal of a number n is 
the reciprocal of
is 
The product of a number and it's reciprocal = 1
The sign of each Y coordinate changed
Answer:
the answers for those are number 4 is 150 and 5 is 16%
Step-by-step explanation:
number 4 500 x 30= 15,000
15,000 ÷ 100= 150
number 5 80 x 100=8,000
8,000÷ 500= 16 so 16%
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