Solve the problem.A size 52 dress in Country C is size 10 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find the inverse of the function.
A. f-1(x) = 2x + 16
B. f-1(x) = x + 16
C. f-1(x) = 2(x - 16)
D. f-1(x) = 2(x + 16)
Answer: D
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Solve by the method of elimination by addition or subtraction.
= 59x = 10 + 9y
A. x = 
, y = 
B. x = 
, y = 
C. x = 
, y = 
D. x = 
, y = 
Identify which of three conceptual models of division (repeated subtraction, partition, missing-factor) best corresponds to the problem.A group of 4 people wants to buy a boat. The boat costs $416. If they all pay the same amount, how much is each person's share?
A. Missing-factor B. Repeated subtraction C. Partition
Solve the problem.A picture costs $790. The sales tax is $51.35. What is the sales tax rate?
A. 0.65% B. 6.5% C. 8.5% D. 7.5%
Divide the complex numbers below and leave the result in trigonometric form.
What will be an ideal response?