Solve the rational equation.
= - 
A. {-1, 0, 1}
B. ?
C. {1}
D. {-1, 1}
Answer: D
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Solve the problem.If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day, and so on, how much money will be in the bank after 30 days?
A. $9.30 B. $4.65 C. $0.30 D. $2.33
Provide an appropriate response.If a relation exists between x and y, then we say that x 
y or that y 
x, and we write 
A. depends on; corresponds to B. depends on; depends on C. corresponds to; depends on D. corresponds to; corresponds to
Find the probability.The maker of a certain candy claims that the proportions of colors of candy produced are: 
0.1 purple and 0.6 yellow. Suppose a candy is selected randomly from each of two 
bags. What is the probability that neither will be red?
A. 0.81 B. 0.01 C. 0.2 D. 1
Add or subtract as indicated. Write a sentence answering the question.A hiker started the day with 6.5 liters of water. At the first break, she drank 126 milligrams of water. How many dekaliters of water remained?
A. 0.6374 dekaliter of water remained. B. 6.374 dekaliters of water remained. C. 5.24 dekaliters of water remained. D. 63.74 dekaliters of water remained.