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 3 foot candles, find the intensity on a screen 20 ft from the light.
A. 
foot-candle
B. 
foot-candle
C. 1
foot-candles
D. 2 foot-candles
Answer: B
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Provide an appropriate response.Perform the indicated operations without a calculator: 54 ÷ 103 =
A. 0.054 B. 0.54 C. 54,000 D. 0.0054
Find the final balance in the check register.
A. $1207.04 B. $1465.68 C. $2061.20 D. $547.80
Provide an appropriate response.Without multiplying by the least common denominator and solving, explain why the rational equation 
has no solution. (Hint: Examine both numerators and denominators carefully.)
What will be an ideal response?
Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 4.
A. 6900; 110,400 B. 6900; 55,200 C. 6900; 27,600 D. 13,800; 110,400