Find the sum of the infinite geometric series, if it exists.45 + 15 + 5 + 
+ . . .
A. 65
B. 
C. - 
D. Does not exist
Answer: B
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Complete.145 mg = 
g
A. 14,500 B. 145,000 C. 0.145 D. 1.45
In a certain city there is a river running through the middle of the city. There are three islands and nine bridges as shown in the figure below.
Suppose there is a crossing charge of $1.00 every time one crosses a bridge. A tourist wants to start on the South Bank, stroll across each of the bridges at least once, and return to her hotel on the South Bank at the end of the trip. What is the cheapest possible cost of such a trip?
A. Such a trip is impossible. B. $18 C. $9 D. $10 E. none of these
Solve the equation for x, where x is restricted to the given interval.y = 3 tan 2x - 1, for x in 
A. x = 
arctan (3y + 3)
B. x = 2 arctan 
C. x = 2 arctan (3y + 3)
D. x = 
arctan 
Provide an appropriate response.In a raffle 1000 tickets are being sold at $1.00 each. The first prize is $100, and there are 3 second prizes fo $50 each. By how much does the price of a ticket exceed its expected value?
A. $1.00 B. $0.75 C. $1.75 D. $50