The demand equation for a certain brand of GPS Navigator is x + 5p - 425 = 0, where x is the quantity demanded per week and p is the wholesale unit price in dollars. The supply equation is x - 17p + 1,005 = 0, where x is the quantity the supplier will make available in the market when the wholesale price is p dollars each. Find the equilibrium quantity and the equilibrium price for the GPS Navigators.
a. equilibrium quantity 100 units; equilibrium price $65
b. equilibrium quantity –10 units; equilibrium price $70
c. equilibrium quantity –10 units; equilibrium price $65
d. equilibrium quantity 100 units; equilibrium price $70
a. equilibrium quantity 100 units; equilibrium price $65
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Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $171,610 B. $343,220 C. $686,440 D. $85,805
Solve the inequality.x3 > 3x2
A. (0, 3) B. (-?, 0) or (3, ?) C. (-?, 3) D. (3, ?)
Solve the problem.The voltage E in an electrical circuit is given by E = 5.2 cos 30?t, where t is time measured in seconds. Find the frequency of the function (that is, find the number of cycles or periods completed in one second).
A. 30
B. 
C. 15
D. 
Evaluate. Assume that all variables represent positive numbers. - 
A. - 
B. 16
C. 
D. -16