Solve the problem.Biologists banded five out of every twenty wild ducks. What percent were not banded?
A. 15%
B. 5%
C. 75%
D. 25%
Answer: C
Mathematics
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Simplify.
A. 
B. 
C. 8 - a2
D. 8
Mathematics
Given matrix A, find the indicated minor or cofactor.Find the cofactor A12.A = 
A. 5 B. -9 C. 9 D. -2
Mathematics
Solve the system of equations by the elimination method. x + 8y = -7-2x + 7y = -32
A. (9, -2) B. (-9, -1) C. (8, -1) D. no solution
Mathematics
Graph the inequality.x ? 
A. 
B. 
C. 
D. 
Mathematics