Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 
find the intensity on a screen 10 ft from the light.
A. 
foot-candle
B. 1 
foot-candles
C. 2 foot-candles
D. 
foot-candle
Answer: D
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List the elements of the set.If A = {17, 19, 20, 21, 24} and B = {17, 19, 20, 21}, list the elements of 
A. {17, 19, 20, 21} B. {17, 19, 20, 21, 24} C. ? D. {24}
Solve the equation by completing the square.p2 + 5p - 5 = 0
A. 
B. 
C. 
D. {-5 + 3
, -5 - 3
}
Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. The equation 
can be used to approximate the data. Predict the average annual cost in 2007 to the nearest dollar. 
A. $1473 B. $1554 C. $1500 D. $1527
The sequence is defined recursively. Write the first four terms.a1 = 2, a2 = 5 and an = an-2 - 3an-1 for n ? 3
A. 2, 5, -1, -16 B. 2, 5, 1, 2 C. 2, 5, 17, -46 D. 2, 5, -13, 44