Write an equation that expresses the relationship. Use k as the constant of variation.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 56 ft from a light is 2.7 foot-candles, find the intensity on a screen 70 ft from the light.
A. 1.728 foot-candles
B. 3.38 foot-candles
C. 2.16 foot-candles
D. 4.22 foot-candles
Answer: A
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A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is a heart that is not a king.
A. 
B. 
C. 
D. 
Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag.
A. Systematic B. Stratified C. Convenience D. Simple random
Round the whole number to its highest place value.414
A. 500 B. 300 C. 400 D. 410
Begin by graphing the standard cubic function f(x) = x3. Then use transformations of this graph to graph the given function.g(x) = 
x3
A. 
B. 
C. 
D. 