Solve the problem.The owner of a factory finds that the price, p (in dollars), of an item is given by the equation 
where x is the daily demand. Find the price of the item when the daily demand is 88 units.
A. $72.90
B. $8.77
C. $8.10
D. $17.10
Answer: C
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Solve the problem.For the surface z = f(x,y), show that the surface integral 
d? = 
dxdy.
What will be an ideal response?
Find the absolute extreme values of each function on the interval.f(x) = csc x, - 
? x ? 
A. Maximum value of 0 at x = -?; minimum value of -1 at x = ? B. Maximum value: does not exist; minimum value: does not exist C. Maximum value of 1 at x = ?; minimum value of -1 at x = ? D. Maximum value of -1 at x = ?; minimum value of 1 at x = 0
Find the weighted mean of the numbers in the table. Round to the nearest tenth.A telephone company kept track of the calls for the correct time during a 
period for two weeks. The results are shown in the table.
A. 59.6 calls B. 62.0 calls C. 61.6 calls D. 61.8 calls
Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes B. Yes; no C. No