Solve the problem using the elimination method.The sum of two numbers is 7. Three times the larger number plus two times the smaller number is 27. Find the numbers.
A. 20 and -13
B. 13 and -6
C. 6 and -13
D. 6 and 1
Answer: B
Mathematics
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If 
, calculate the value of 
.
?
A. 112.01 B. 289.68 C. 111.37 D. -0.63
Mathematics
An 30-pound boy wants to teeter on a 24-foot seesaw with his older sister who weighs 90 pounds. The fulcrum of the seesaw is in the center. If the boy sits at one end, how far will the boy’s sister have to sit from the fulcrum to balance the seesaw?
A. 12 B. 60 C. 4 D. 3
Mathematics
Find the indicated intersection or union.{4, 8, 12, 16} ? {3, 6, 9, 12}
A. {3, 4, 8, 9, 12, 16} B. {3, 4, 6, 8, 9, 12, 16} C. {12} D. {3, 4, 6, 8, 9, 12, 12, 16}
Mathematics
Find the greatest common factor of the list of items.z2, z4, z
A. z2 B. z C. z4 D. z6
Mathematics