Solve the problem.The table shows the prizes and probabilities of winning (on a single $1 ticket) for a particular state lottery. Find the expected value of the winnings for a single lottery ticket. 
A. -$0.79
B. -$0.75
C. $0.21
D. -$0.84
Answer: A
Mathematics
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Provide an appropriate response.Express 4 lb 30 oz in standard notation.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Subtract.12 - 11
A. -1 B. 23 C. -23 D. 1
Mathematics
Solve the system using the addition method. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x.3x + 6y = 109x + 18y = 30
A. (0, 4)
B. (6, 1)
C. Dependent, 
D. Inconsistent, ?
Mathematics
?Find the slope of the line passing through the pair of points.
?
, 
?
A. ?
B. ?
C. ?
D. ?0
E. ?
Mathematics