Solve the problem.Suppose that a sales person observes that if an item is priced at $5 per item then 4 items are sold. If 2 items are sold for $7 per item then find an equation to model the number y of items sold for x dollars per item.
A. y = x - 1
B. y = -x + 9
C. y = x + 9
D. y = -x - 1
Answer: B
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Answer the question or solve the problem.Jesse forgot in which chapter she has math homework. She knows it is within chapters 3 to 7 and deals with exponents. She knows that her homework is not from chapter 3. Last month they worked on chapter 4 so they're at least two chapters ahead by now. The final will not be for another month. She estimates that they do two chapters a month and the book has 8 chapters. When the final comes, they will have just finished the entire book. Which chapter should Jesse look in to do the homework assignment?
A. Chapter 4 B. Chapter 5 C. Chapter 7 D. Chapter 6
Evaluate the function as indicated.Find f(5.1) when f(x) = -17.
A. -86.7 B. 17 C. -17 D. 5.1
Write the sentence as a mathematical statement.Negative twenty-three is equal to negative twenty-three.
A. -23 = -23 B. -23 ? -23 C. -23 ? -23 D. -23 ? -23
Find the real solutions of the equation by factoring.20x3 + 100x2 + 120x = 0
A. {-3, -2}
B. {- 
, -2}
C. {0, 3, 2}
D. {0, -3, -2}