The demand function for a certain brand of compact disc is 
, where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand.
?
Compute the elasticity of demand (to the nearest hundredth) when x = 15.
?
__________
?
Determine whether the demand is inelastic, unitary, or elastic when x = 15.
?
__________
What will be an ideal response?
0.07; inelastic
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Solve the problem. Round your answer to the nearest cent.Sumi Kato's savings account has a balance of $141. After 9 years what will the amount of interest be at 3.5% compounded annually?
A. $40.17 B. $57.17 C. $51.17 D. $126.90
Provide an appropriate response.Perform the indicated operation. Express as an ordinary number. 0.487 ? 102
Fill in the blank(s) with the appropriate word(s).
Find the indicated function value.Find f(-3) when f(x) = 
.
A. - 
B. 
C. - 
D. - 
Solve.In a town whose population is 4000, a disease creates an epidemic. The number N of people infected t days after the disease has begun is given by the function N(t) = 
. Find the number infected after 8 days.
A. 3899 B. 3898 C. 3896 D. 3894