Solve the problem.Suppose a charitable organization decides to raise money by raffling a trip worth $500. If 3,000 tickets are sold at $1.00 each, find the expected net winnings for a person who buys 1 ticket.
A. -$0.81
B. -$0.85
C. -$0.83
D. -$1.00
Answer: C
Mathematics
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Solve the problem.A cable TV company charges $21 for the basic service plus $5 for each movie channel. Write an equation for the total cost in dollars, y, of subscribing to cable TV, using x movie channels.
A. y = 21x - 5 B. y = 21x + 5 C. y = 5x + 21 D. y = 5x - 21
Mathematics
Evaluate the function for the given value.f(x) = 2x2 - 2x - 7; f(k - 1)
A. -6k2 + 2k - 3 B. 2k2 + 6k + 3 C. 2k2 + 6k - 3 D. 2k2 - 6k - 3
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve.7x - 2(3x + 5) = -12
A. -22 B. -2 C. 2 D. 22
Mathematics