Write the set in set builder notation.{21, 28, 35, 42, . . . , 91}
A. {x ? N? x = 7n for n ? N and 21 < x < 91}
B. {x ? N? x = 7n for n ? N and x ? 21}
C. {x ? N? x = 7n for n ? N and 14 < x < 98}
D. {x? x = 7n for n ? N}
Answer: C
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Determine the limit by sketching an appropriate graph.
f(x), where f(x) = 
A. Does not exist
B. 
C. 0
D. 1
Determine whether the function is one-to-one.The function that pairs the temperature at 3:00 pm in your city in degrees Fahrenheit with the temperature in degrees Celsius.
A. Yes B. No
Solve.A case of candy bars has 2 layers of candy bars. In each layer are 6 rows with 14 candy bars in each row. Find how many candy bars are in a case.
A. 178 candy bars B. 158 candy bars C. 167 candy bars D. 168 candy bars
Use a graphing utility to graph the function below.
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