You sell books, and the price you charge a single customer for each book depends on the number purchased. If a customer orders B books then you charge 
dollars for each book. You have to pay the wholesaler $162 for each book you sell.
?
A: Write a formula that gives your income I, in dollars, if you sell B books. (For income, you do not consider the price you pay for each book.)B. Write a formula that gives your net profit P, in dollars, if you sell B books. (For net profit you must consider both income and cost.)C: What number of books sold will provide you with the most profit?
What will be an ideal response?
?
B. 
?
C. 27 books
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Perform the indicated operations.(x - 5)(-4x - 10)
A. -4x2 + 10x + 50 B. -4x2 + 50x + 10 C. -4x2 + 8x + 50 D. -4x2 + 10x + 10
Find the exact area under the curve between the indicated values of x.y = x2 + 1; between x = 0 and x = 1
A. 
B. 
C. 
D. 
Solve the problem.If x is the hydrogen ion concentration of a sample of water, then the pH of that water sample is 
If the pH of the water from one lake is 6.4 and the pH of the water from a second lake is 7.3, how many times greater is the hydrogen ion concentration of the second lake than the hydrogen ion concentration of the first lake? Round your answer to the nearest hundredth.
A. 13.82 B. 0.13 C. 7.94 D. 7.53
Write the sentence as an equation or inequality. Use x to represent any unknown number.Four is not equal to six divided by two.
A. 4 = 6 ÷ 2 B. 4 ? 6 C. 4 ? 6 ÷ 2 D. 4 ÷ 2 ? 6