Use the graph to answer the question.
Use a signed number to represent the change in sales between month 5 and month 6 of 2001?
A. $4
B. $8000
C. $800
D. $4000
Answer: D
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Use the pH scale to answer the question.If the pH of a solution decreases by 1.7, how much does the hydrogen ion concentration change? Does the change make the solution more acidic or more basic?
A. Increases by a factor of 17; more acidic B. Decreases by a factor of 50; more basic C. Decreases by a factor of 17; more basic D. Increases by a factor of 50; more acidic
Use the addition rule to solve the problem.A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing an ace or a 6?
A. 
B. 
C. 7
D. 
Find a system of inequalities with the given graph.
A. y ? -2x + 1 y ? 2x - 3 B. y ? -2x - 3 y ? 2x - 3 C. y ? -2x + 1 y ? 2x - 3 D. y ? -2x + 1 y ? 2x + 1
Divide and simplify.- 
÷ 6
A. - 
B. - 
C. - 
D. - 3