Answer:
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Step-by-step explanation:
hope this helps.
Answer:

Step-by-step explanation:
Given

Required
Solve
We have:

Collect like terms


So:

Answer:
f(1/3) = 1
Step-by-step explanation:
Plug 1/3 in for n
f(1/3) = 3(1/3)
Now simplify
f(1/3) = 1 { 3(1/3) = (3/1)(1/3) = 3/3 = 1 }
Decrease in the price is = 320 - 240 = 80
So, percentage will be: 80/320 * 100 = 25%
So, option A is your answer.
Hope this helps!