Solve.
(r + 6) = 
(r + 8)
A. 4
B. 3
C. -4
D. -12
Answer: C
Mathematics
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Simplify the expression. If any variables exist, assume that they are positive.
+ 7
+ 7
A. 56
B. 14
C. 57
D. 15
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Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
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Graph the linear equation by finding and plotting its intercepts.x + y = 6
A. 
B. 
C. 
D. 
Mathematics
Divide.-45 ÷ (-0.09)
A. 5 B. 50 C. 500 D. 0.5
Mathematics