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.
A. E(x) = 
B. E(x) = 
C. E(x) = 
D. E(x) = 
Answer: B
Mathematics
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Simplify.
-4
A. 
B. x20y8w4z12
C. 
D. 
Mathematics
Evaluate.-(-|-(-6)|)
A. -6 B. 6 C. -1 D. 1
Mathematics
Solve the problem.A force of 
will stretch a rubber band 
. Assuming Hooke's law applies, how much work is done on the rubber band by a 
force?
A. 0.135 J B. 0.015 J C. 1350 J D. 0.045 J
Mathematics
Which of the following is a factor of the expression 
?
??
A. 
B. 
C. 
D. 
Mathematics