Solve.Two times the difference of some number and 9 gives the quotient of 24 and 4. Find the number.
A. 12
B. -6
C. 6
D. 15
Answer: A
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Pancreatic juice is the most alkaline body fluid with [H+] = 3 × 10-8 mol/L. What is the pH of pancreatic juice?
A. 7.6 B. 6.4 C. 8.0 D. 3.0
Find the required inverse and locate on the number line.Find the additive inverse for - 
and graph on the number line. 
A. 
B. 
C. 
D. 
Determine whether the two pairs of numbers are proportional.3.5, 4.4 and 2.5, 3.5
A. No B. Yes
Solve.Suppose that you are planning a trip to England so you need to obtain some British pounds. The amount received in pounds varies directly with the amount in U.S. dollars. Your friend just converted $2300 into 1196 pounds. Write a linear function that relates the number of pounds P to the number of U.S. dollars d.
A. P = 0.52d B. P = 0.49d C. P = d - 1104 D. P = 1.92d