Solve the problem.If the marginal price 
at x units of demand per week is proportional to the price p, and if at $80 there is no weekly demand 
and if at $50.18 there is a weekly demand of 8 units 
find the price-demand equation.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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For right triangle ABC, m
= 90°. If b = 8 and c = 12, find cos B (or cos 
).
What will be an ideal response?
Mathematics
Solve the problem.Julio buys a bike which has a cash price of $280. He puts $30 down, and agrees to pay 12 payments of $24. After 8 payments he gets some birthday money and decides to pay off his loan. Find the unearned interest and the amount to pay off the loan.
A. $5.14, $90.86 B. $7.28, $88.72 C. $4.87, $91.13 D. $3.34, $92.66
Mathematics
Rationalize the numerator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Sketch one complete cycle of the following function by first graphing the appropriate sine or cosine curve and then using the reciprocal relationships.
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?
A. ?
B. ?
C. ?
?
D. ?
?
E. ?
?
Mathematics