Decide whether the expression is or is not an identity.
= 0
A. Identity
B. Not an identity
Answer: B
Mathematics
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Solve the problem.Use the possibility tree to count how many four-child families have two boys and two girls.
A. 8 families B. 2 families C. 6 families D. 4 families
Mathematics
Evaluate the expression without a calculator.
-3
A. 
B. - 
C. - 
D. 
Mathematics
Solve the rational inequality. Write the solution in interval notation.
< 4
A. 
B. (-5, 4)
C. (-?, 4) ? 
D. ?
Mathematics
Solve.Find the discount rate when the original price is $158.00 and the amount of the discount is $61.60.
A. 2% B. 1% C. 39% D. 80%
Mathematics