3) Here is a recursive function for sequence f: f(1)=23,f(n)=f(n−1)−7. The explicit formula for the term is f(n)=23−7(n−1). a. Explain how you know that these definitions represent the same sequence. b. Select a definition to calculate f(20), and explain why you chose it.

answer: 40.95

step-by-step explanation:

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

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answer