Solve the problem.A store owner finds that the demand function for a product he sells is 
where D(p) is the number of items that can be sold in one day at a price of p dollars. For what prices is the demand elastic? Inelastic?
A. Elastic: 0 < p < 6.50
Inelastic: p > 6.50
B. Elastic: p > 3.25
Inelastic: 0 < p < 3.25
C. Elastic: p > 13.00
Inelastic: 0 < p < 13.00
D. Elastic: p > 6.50
Inelastic: 0 < p < 6.50
Answer: D
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Solve the problem.The path between three landmarks in a national park form a right triangle. The oldest living evergreen tree is at point A, the ranger station is at point B, and the natural hotspring is at point C. The right angle is at point C, and there is a 60° angle at point B. If the distance between the hotspring and the evergreen tree is 696 yards, find the distance, x, from the hotspring to the ranger station. 
A. 492.1463 yd B. 401.84 yd C. 984.29 yd D. 1,205.51 yd
Round the money amount to the specified place.$31.59 to the nearest dollar.
A. $31.6 B. $40 C. $32 D. $31
Write an equation for the graph.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the product. Use the FOIL method.(4x - 5)(4x + 5)
A. 16x2 + 40x - 25 B. 16x2 - 40x - 25 C. 4x2 + 40x - 25 D. 16x2 - 25