A mold culture in a dorm refrigerator is circular and growing. The radius is increasing at a rate of 0.1 cm/day. How fast is the area growing when the culture is 6 centimeters in radius? (The area of a disc of radius r is 
.)
?
A. 
B. ?
C. ?
D. 
E. 
Answer: D
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Use the appropriate rounding rule to answer the question with the correct precision or correct number of significant digits.If you buy 207 items which weigh 0.025 lb each, what is the total weight of your purchase?
A. 5.175 lb B. 5.18 lb C. 5.2 lb D. 5 lb
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x2, y = 9, x = 0
A. 18?
B. 
?
C. 
?
D. 
?
Use a factor pair table to find all of the factor pairs of each number.36
A. 1 and 36; 2 and 18; 3 and 12; 4 and 9; 6 and 6 B. 1 and 36; 2 and 18; 3 and 12; 4 and 10; 5 and 9; 6 and 6 C. 2 and 36; 4 and 18; 6 and 12 D. 1 and 36; 2 and 18; 4 and 12; 6 and 6
Solve the inequality. Write the solution set in interval notation.x2 - 6x + 5 ? 0
A. [5, ?) B. [1, 5] C. (-?, 1] D. (-?, 1] ? [5, ?)