Solve the problem.Sergio's internet provider charges its customers $8 per month plus 4¢ per minute of on-line usage. Sergio received a bill from the provider covering a 
period and was charged a total of $50.80. How many minutes did he spend on-line during that period? (Round to the nearest whole minute, if necessary.)
A. The number of minutes is 870.
B. The number of minutes is 437.
C. The number of minutes is 87.
D. The number of minutes is 287.
Answer: A
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Use the relative frequency method to estimate the probability. Round your answer to 2 decimal places when necessary.Every week, Joe plays chess with his father. Of the last 50 games, Joe has won 63% of the games. What is the probability that Joe will win the next game?
A. 0.63 B. 0.063 C. 1 D. 0.5
Determine whether the two given lines are perpendicular.y = -4xx = 9
A. Yes B. No
Evaluate the expression.C(4, 0)
A. 24 B. 6 C. 12 D. 1
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 30 feet and the height of the arch over the center of the roadway is 13 feet. Two trucks plan to use this road. They are both 10 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. Both Truck 1 and 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. Neither Truck 1 nor Truck 2 can pass under the bridge.