The demand function for a product is 
, and the supply function for it is 
, where p is the number of dollars and x is the number of units. If
the equilibrium price is $248 what is the producer's surplus at the equilibrium price? Round to the nearest cent.
?
A. $34.51
B. $58.67
C. $152.53
D. $82.13
E. $176.00
Answer: B
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Find an equivalent algebraic expression for the composition.sin (arccot (x))
A. 
B. 
C. 
D. 
Draw a tree diagram for the experiment. Then use the diagram to find the number of possible outcomes.Spin the first spinner once, toss a coin, and spin the second spinner once. 
A. 48 B. 36 C. 24 D. 9
? is an acute angle and sin ? and cos ? are given. Use identities to find the indicated value.Given that sin ? = 
and cos ? = 
, find the value of tan ?.
A. 
B. 
C. 
D. 
Solve the problem.Annika invested in a plan that has an APR of 8%. She invested in a 11% APR account $2500 more than she invested in the 8% account. If the total interest from the investments after 1 year is $3695, then what is the total amount that she invested?
A. $33,500 B. $38,500 C. $20,500 D. $36,000