Identify the property illustrated by the expression.12 + (20 + 22) = (12 + 20) + 22
A. commutative property of addition
B. distributive property
C. identity element for addition
D. associative property of addition
Answer: D
Mathematics
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Use the even-odd properties to find the exact value of the expression. Do not use a calculator.sin (-30°)
A. - 
B. - 
C. 
D. 
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Solve the inequality, then graph the solution.-2n + 10 > -3n + 7
A. n < -3 
B. n ? 17 
C. n > -3 
D. n ? 17 
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Perform the indicated operation, whenever possible.
- 
A. 
B. 
C. [-2]
D. 
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Find the circumference of the circle. Use 3.14 for ?. Round to the nearest hundredth.
A. 754.39 mi B. 97.34 mi C. 194.68 mi D. 48.67 mi
Mathematics