Simplify.- 
A. - 
B. - 
C. 
D. 
Answer: A
Mathematics
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Decide whether the statement is true or false.A hexahedron has twice as many edges as it does vertices.
A. True B. False
Mathematics
Simplify.-2 ? (-4 - 1.2)
A. -10.4 B. 10.4 C. -5.6 D. 5.6
Mathematics
Add or subtract as indicated. Simplify, if necessary.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality.In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 
. Find the Celsius temperatures at which the reaction may occur. 
A. C < 387.27° B. C ? 387.27° C. C ? 91.87° D. C ? 91.87°
Mathematics