Simplify.
A. 3
B. 3
C. 9
D. 6
Answer: A
Mathematics
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Provide an appropriate response.In a formula r varies jointly as s and t. if r = 540 when s = 15 and t = 24, find r when s = 21 and t = 30.
A. 771 B. 22.5 C. 945 D. 9,540
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Evaluate the expression.(
+ 5)2
A. 7 B. 16 C. 49 D. 4
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Solve the rational equation.
+ 
= 
A. 5, -5 B. 5 C. -5 D. empty set
Mathematics
Graph the linear inequality.y ? 3
A. 
B. 
C. 
D. 
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