Solve the problem.An electronics store determines the following demand function for phones of a particular type 
where q = the number of phones sold per day when the price per phone is x dollars. Find the elasticity when 
per phone.
A. E(x) = 1.58
B. E(x) = 0.6
C. E(x) = 0.45
D. E(x) = 0.95
Answer: B
Mathematics
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Solve the problem.V = 
?r3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 2 cm to 2.1 cm? (Use 3.14 for ?.)
A. 5.2 cm3 B. 5.0 cm3 C. 0.3 cm3 D. 4.8 cm3
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Simplify the expression.2 + 3(2 - 8m)
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