Insert parentheses where needed so that the expression evaluates to the given number.4 ? 7 - 2 ? 6; evaluates to -20
A. (4 ? 7) - (2 ? 6)
B. 4 ? (7 - 2) ? 6
C. 4 ? (7 - 2 ? 6)
D. (4 ? 7 - 2) ? 6
Answer: C
Mathematics
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Solve the equation.
= y + 4
A. {-1} B. {3} C. {7} D. {-3}
Mathematics
Evaluate.
A. 18t - 5 + C
B. 9t3 - 5t2 + 4t + C
C. 3t3 - 
t2 + 4t + C
D. 
t3 - 5t2 + 4t + C
Mathematics
Simplify, if possible.
A. 1
B. -6
C. -1
D. 
Mathematics
Use the information given in the figure.
How many are in set A?
A. 48 B. 27 C. 31 D. 36
Mathematics