Solve the problem.Of 180 trees in the park, 41 are coniferous trees. What fraction of the trees are not coniferous trees?
A. 
B. 
C. 
D. 
Answer: A
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Simplify.19 + 21 ? 27
A. 426 B. 586 C. 1080 D. 67
Solve the problem involving related quantities.The president of a certain university makes three times as much money as one of the department heads. If the total of their salaries is $270,000, find each worker's salary.
A. president's salary = $135,000; department head's salary = $67,500 B. president's salary = $67,500; department head's salary = $202,500 C. president's salary = $20,250; department head's salary = $6750 D. president's salary = $202,500; department head's salary = $67,500
Solve the problem.The arch beneath a bridge is semi-elliptical, a one-way roadway passes under the arch. The width of the roadway is 36 feet and the height of the arch over the center of the roadway is 14 feet. Two trucks plan to use this road. They are both 12 feet wide. Truck 1 has an overall height of 
and Truck 2 has an overall height of 
. Draw a rough sketch of the situation and determine which of the trucks can pass under the bridge.
A. Neither Truck 1 nor Truck 2 can pass under the bridge. B. Truck 2 can pass under the bridge, but Truck 1 cannot. C. Truck 1 can pass under the bridge, but Truck 2 cannot. D. Both Truck 1 and Truck 2 can pass under the bridge.
Find the probability.A bag contains 3 blue marbles, 7 green marbles, and 5 red marbles. One marble is drawn from the bag. What is the probability that the marble drawn is not blue?
A. 
B. 4
C. 
D. 