Find the reference angle for the given angle.315°
A. 45°
B. 90°
C. 60°
D. 30°
Answer: A
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Round following numbers as indicated.73.4365 (nearest hundredth)
A. 73.54 B. 73.4365 C. 73.44 D. 73.34
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 8
B. 
C. 4,096
D. not a real number
Solve the problem.The amount of a radioactive substance present, in grams, at time t in months is given by the formula 
Find the number of grams present in 3 years. If necessary, round to three decimal places.
A. 3958.524 grams B. 4.081 grams C. 395.852 grams D. 40.807 grams
Use the data to complete the table.The following is the number of hours students worked per week at after-school jobs. 
A. Frequency: 3, 3, 6, 3, 5 B. Frequency: 3, 3, 5, 5, 4 C. Frequency: 3, 3, 6, 4, 4 D. Frequency: 3, 2, 7, 4, 4