Solve the problem.A 100-liter mixture of chlorine and water is 3% chlorine. (i) Write a rational expression in x whose values give the percentage (in decimal form) of the mixture that is chlorine when x gallons of water are added to the mixture. (ii) Find the percentage of chlorine in the mixture if 80 gallons of water are added to it. Round to the nearest percent, if necessary.
A. (i) 
;
(ii) 3%
B. (i) 
;
(ii) 2%
C. (i) 
;
(ii) 129%
D. (i) 
;
(ii) 4%
Answer: B
Mathematics
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Solve.In an extended care facility, 0.6964 of the residents require a particular heart medication. Write this decimal as a percent.
A. 69.64% B. 6.964% C. 6964% D. 0.6964%
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Use set notation, and list all the elements of the set.
A. 
B. 
C. 
D. 
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A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the approximate number of bulbs that can be expected to last the specified period of time.At least 500 hours
A. 2500 B. 1000 C. 5000 D. 2400
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Find the indicated term for the geometric sequence.a1 = 122,880, r = 
; a6
A. 480
B. 
C. 120
D. 30
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