Solve the inequality, giving its solution set in both interval and graph forms.3 ? 
? 9
A. 
-  |  |
B.
 ? |  |
C.
, 
-  |  |
D.
 ? |  |
Answer: B
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Solve the problem.To get credit for graduation, Brittany completed 20 hours of community service. She worked at a soup kitchen for 
of the time. She picked up litter along highways for 
of the time. The rest of the hours she spent tutoring younger children after school. How much time did Brittany spend tutoring?
A. 5
hours
B. 7
hours
C. 5
hours
D. 6
hours
Graph the function.y = -3 sin 
A. 
B. 
C. 
D. 
Write an algebraic equation and use it to solve the problem.A hot air balloon spent several minutes ascending. It then stayed at a level altitude for three times as long as it had ascended. It took 5 minutes less to descend than it did to ascend. The entire trip took one hour and 20 minutes. For how long was the balloon at a level altitude?
A. 17 minutes B. 29 minutes C. 12 minutes D. 51 minutes
Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 3 feet from the base along the axis of symmetry and the opening is 10 feet across, how deep should the searchlight be?
A. 6.3 ft B. 8.3 ft C. 0.5 ft D. 2.1 ft