Integrated Algebra - June 2009

11 If the speed of sound is 344 meters per second, what is the approximate speed of sound, in meters per hour?

(1) 20,640 (3) 123,840

(2) 41,280 (4) 1,238,400

12 The sum of two numbers is 47, and their difference is 15.
What is the larger number?

(1) 16 (3) 32

(2) 31 (4) 36

15 The box-and-whisker plot below represents students’ scores on a recent English test.

What is the value of the upper quartile?

(1) 68 (3) 84

(2) 76 (4) 94

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