Add.
+ (- 
)
A. - 
B. 
C. - 
D. 
Answer: B
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Solve the equation by factoring.
= 
A. {6, -1} B. {36, -1} C. {6, 1} D. {36, 1}
The volume of a gas varies directly with the temperature and inversely with the pressure. When the temperature of a certain gas is 
, the pressure is 50 pounds per square inch and the volume is 60 cubic feet. Find the volume when the pressure increases 10 pounds per square inch and the temperature decreases to 
style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_41fe12e2d34a4c97b60df83c8" />. ? Please round to the nearest tenth, if necessary. ? __________ cubic feet Fill in the blank(s) with the appropriate word(s).
Solve the equation.
+ 
= 4
A. {-3}
B. ?
C. 
D. {3}
Solve the problem.Two trains leave a train station at the same time. One travels east at 10 miles per hour. The other train travels west at 9 miles per hour. In how many hours will the two trains be 95 miles apart?
A. 2.5 hr B. 5.5 hr C. 5 hr D. 10 hr