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渚嬮锛欰n online store receives customer satisfaction ratings between 0 鈥 100, inclusive. In the first 10 ratings the store received, the average (arithmetic mean) of the ratings was 75. What is the least value the store can receive for the 11th rating and still be able to have an average of at least 85 for the first 20 ratings.
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渚嬮锛欰 bank has opend a new branch and ,as part of a promotion, the bank branch is offering $1,000 certificates of deposit at an interst rate of 4% per year, compounded semiannually. The bank is selling certificates with terms of 1,2,3 or 4 years. Which of the following fuctions gives the total amount, A, in dollars, a customer will receive when a certificate with a term of k years is finnally paid.A) A= 1,000(1+0.04K)B) A=1,000(1+0.08K)C) A=1,000(1.04)kD) A=1,000(1.04)2k
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