Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. Mary and her brother John collect foreign coins. Mary has three times the number of coins that John has. Together they have 160 foreign coins. Find how many coins Mary has.
A. 40 coins
B. 112 coins
C. 120 coins
D. 24 coins
Answer: C
Mathematics
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A. Even B. Odd C. Neither
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Use the accompanying table to find the solutions to the given equation on 
sec2 ? - 2 sec ? = 0
Y1 = 1/(cos(X))2-2/cos(X)
A. None B. 0°, 120°, 180°, 240° C. 60°, 300° D. -1°
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Find the common difference of the arithmetic sequence.8, 13, 18, 23, ...
A. -5 B. 15 C. 5 D. -15
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Solve the inequality. Graph the solution set and write the solution set in interval notation.(5y + 8)(3y - 7) > 0
A. 
? 
B. 
C. 
? 
D. 
Mathematics