Evaluate the expression.
A. -4
B. 2
C. -3
D. -2
Answer: B
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 60,000 B. 0.06 C. 0.00001667 D. 0.0006
Find the graph that matches the given system of equations.3x + 4y = 14
A. 
B. 
C. 
D. 
Solve the problem.The function 
can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after 
A. 5.81 mg B. 0.29 mg C. 0.49 mg D. 131.56 mg
Solve the problem.A painter leans a 22 foot ladder against one wall of a house. At what height does the ladder touch the wall if the foot of the ladder is 15 ft from the base of the wall?
A. ? 16.1 ft B. ? 129.5 ft C. ? 2.6 ft D. ? 26.6 ft