22 Which ordered pair is a solution of the system of
equations y = x^{2} – x – 20 and y = 3x – 15?

(1) (–5,–30) (3) (0,5)

(2) (–1,–18) (4) (5,–1)

23 A survey is being conducted to determine which types of
television programs people watch. Which survey and location
combination would likely contain the most bias?

(1) surveying 10 people who work in a sporting goods store

(2) surveying the first 25 people who enter a grocery store

(3) randomly surveying 50 people during the day in a mall

(4) randomly surveying 75 people during the day in a clothing
store

24 The length of a rectangular room is 7 less than three
times the width, w, of the room. Which expression represents the
area of the room?

(1) 3w – 4 (3) 3w^{2} – 4w

(2) 3w – 7 (4) 3w^{2} – 7w

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