Solve the problem.The regular price of a car is x dollars. Let f(x) = x - 500 and g(x) = 0.9x. Then f represents the price of the car less $500, and g represents a 10% discount on the car. Which composite function represents the greater discount on the car, 
or 
A. f?g and g?f represent an equal discount.
B. f?g and g?f don't represent discounts on the car.
C. g?f represents the greater discount.
D. f?g represents the greater discount.
Answer: D
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Solve the problem.The positions of two particles on the s-axis are s1 = sin t and 
with s1 and s2 in meters and t in seconds.At what time(s) in the interval 0 ? t ? 2? do the particles meet?
A. t = 
? sec and t = 
? sec
B. t = ? sec and t = 2? sec
C. t = 
? sec and t = 
? sec
D. t = 
? sec and t = 
? sec
Provide an appropriate response.Reduce 
to lowest terms.
A. 
B. 
C. 
D. 
Solve the rational equation.
= 
+ 
A. 
B. - 
C. 3
D. -3
Find the probability.Each digit from the number 5,979,669 is written on a different card. If one of these cards is selected at random, what is the probability of drawing a card that shows 5 or 6?
A. 
B. 
C. 
D. 