Solve the problem.The sum of a student's three scores is 221. If the first is 20 points more than the second, and the sum of the first two is 26 more than twice the third, what was the first score?
A. 68
B. 45
C. 65
D. 88
Answer: D
Mathematics
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Provide an appropriate response.In the figure below, BD = CD. Prove that m(?BAC) = 2 ? m(?BAD).
What will be an ideal response?
Mathematics
Find the slope of the line containing the two points.(8, -4) and (-7, 9)
A. 
B. - 
C. 
D. - 
Mathematics
Simplify.
A. 0
B. Not defined
C. 551
D. 
Mathematics
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Mathematics