Use unit ratios to convert the units.180 inches to yards (Express the answer as a mixed number.)
A. 60 yd
B. 5 yd
C. 540 yd
D. 15 yd
Answer: B
Mathematics
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Identify the type of graph.x2 - 12x + y = 0
A. The graph is an ellipse with center (0, 12). B. The equation has no graph. C. The graph is a parabola opening upward. D. The graph is a parabola opening downward.
Mathematics
Solve the problem.The sum of a number and 8 times its reciprocal is 6. Find the number.
A. 2 or 4 B. 5 C. 4 D. 2
Mathematics
Rewrite the expression without the grouping symbols.n(n + 6)
A. n2 + 6n B. n2 + 6 C. 6n2 D. n + 6n
Mathematics
Use the bar graph to find the requested probability.The bar graph below shows the number of boys born at a certain hospital on New Year's Day in various years. 
If one of these boys is randomly selected, what is the probability that he was born in 1972?
A. 
B. 
C. 
D. 
Mathematics