You want to buy some pens on the Internet. One website charges $8 for the shipping fee and $3 for each pen. Another website char
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Answer:
.86
Step-by-step explanation:
Exponential function formula
where a = initial value
r = rate of change
and t = number of years
given the equation y = 34000(0.86)^x.
r = .86
Hence the change factor is .86