The sum of the first five terms of an arithmetic sequence is 20 and the sixth term is 25. What is the first term of the sequence and the common difference?

What are the domain and range of the functiony = 2(x - 3)2 + 4?

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Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27