**1** On a trip, a student drove 40 miles per hour for 2 hours and then
drove 30 miles per hour for 3 hours. What is the student’s average
rate of speed, in miles per hour, for the whole trip?

(1) 34 (3) 36

(2) 35 (4) 37

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**2 **A ball is thrown straight up at an initial velocity of 54 feet per second.
The height of the ball *t* seconds after it is thrown is given by the
formula h(*t*) = 54*t* - 12*t*^{2}. How many seconds after the ball is thrown
will it return to the ground?

(1) 9.2 (3) 4.5

(2) 6 (4) 4

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**3** What is the period of the function *y *= 5 sin 3*x*?

(1) 5 (3) 3

(2) 2π/5 (4) 2π/3

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**4** A cellular telephone company has two plans. Plan *A* charges $11 a
month and $0.21 per minute. Plan* B* charges $20 a month and $0.10
per minute. After how much time, to the nearest minute, will the cost
of plan *A* be equal to the cost of plan *B*?

(1) 1 hr 22 min (3) 81 hr 8 min

(2) 1 hr 36 min (4) 81 hr 48 min