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A school offered its students an optional field trip. If 15 or fewer students went on the field trip, the charge for each student would be $11.50. If more than 15 students chose to go on the field trip, the charge for each student would be $10.25. 18 students opted to go on the tour, but each pre-paid $11.50. The students agreed to put the extra amount toward dinner on the trip. How much total money will be put toward dinner on the trip?

(F) $12.50

(G) $14.75

(H) $21.75

(J) $22.50

(K) $33.00

For i² = -1, (5 - i)²= ?

（A）24 （B） 26 （C） 24 - 5i （D） 24 - 10i （E） 26 + 10i

Correct Answer: D

Pippin the guinea pig is running on her wheel when, due to a manufacturing error, the wheel breaks free of its axis. Pippin remains in her wheel, running in a straight line until the wheel has rotated exactly 15 times. If the diameter of the wheel is 10 inches, how many inches has the wheel rolled?

(F) 75 (G) 150 (H) 75π (J) 150π (K) 1,500π

Correct Answer: J

Gina watched as a plane took off from the runway and climbed to 30,000 feet. She calculated the plane's height, h feet, t seconds after takeoff to be given by h = 1,200 + 32t. To the nearest second, how many seconds did it take the plane to climb to a height of 2 miles? (Note: 1 mile = 5,280 feet)

（A）37 （B） 128 （C） 293 （D） 900 （E） 1,264

Correct Answer: C