The value of f(1) is 81
<h3>What is Recursive function?</h3>
Recursive Function is a function that repeats or uses its own previous term to calculate subsequent terms and thus forms a sequence of terms
Given:
f(n + 1) = 1/3* f(n)
f(3) = 9
let n=0
f(0+1) = 1/3 * f(0)
f(1) = 1/3 * f(0)
Let n=1
f(1+1) = 1/3 * 1/3*f(0)
f(2) = 1/9 * f(0)
let n=2
f(2+1) = 1/3 * 1/9* f(0)
f(3) = 1/27 * f(0)
Also, f(3) =9
So,
9 = 1/27 * f(0)
f(0) = 27 * 9
f(0) = 243
Now,
f(1) = 1/3 * f(0)
f(1) = 1/3/ 243
f(1) = 81
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A - juice is not sugar free
B - juice is not grape juice

So, it's D, assuming "3 13" meant 
Answer:
0.436 x 6
2.616
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Step-by-step explanation:
Brainliest or.. else..
Answer:
$47,616
Step-by-step explanation:
49,600 x .04 = 1984
49,600- 1984 = $47,616