You can now sell 120 cups of lemonade at 40 cents per cup, but demand is dropping at a rate of 6 cups per week each week. Assuming that raising the price doesn't affect the demand, how fast do you have to raise your price if you want to keep the revenue constant?
?
A. 6 cents per week
B. 2 cents per week
C. 1 cent per week
D. 4 cents per week
E. 5 cents per week
Answer: B
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Solve the problem.A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 16 feet and a depth of 7 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. Write an equation in the form of 
for the parabola used to shape the dish. 
A. y = 
x2
B. y = 
x2
C. y = 
x2
D. y = 
x2
Find the derivative of the function.
?
What will be an ideal response?
Evaluate the expression. Write your answer without negative exponents.120
A. 12 B. -1 C. 0 D. 1
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.4 + 4 ? 
+ 4 ? 
2 + ... + 4 ? 
n - 1 = 
What will be an ideal response?