Solve the problem.Jerry has three pieces of string. The total length is 91 inches. The sum of the two longer pieces is 76. The middle piece is twice as long as the shortest piece. What are the lengths of the three pieces?
A. 7.5, 15, and 68.5 inches
B. 46, 56, and 68.5 inches
C. 15, 30, and 46 inches
D. 15, 46, and 56 inches
Answer: C
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; 1 ? x ? 3
A. 
B. 
C. 
D. 3
Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True B. False
Solve.The population P, in thousands, of Jonesburg is given byP(t) = 
,
where t is the time, in months.Graph the function on the interval [0,?) and complete the following:P(t) ? 
as t ? ?.
A. 
P(t) ? 0 as t ? ?.
B. 
P(t) ? 50 as t ? ?.
C. 
P(t) ? 45 as t ? ?.
D. 
P(t) ? 1 as t ? ?.
Write the solution set in interval notation.-3 < w ? 1
A. {w|-3 < w ? 1} B. {w|-3 < w < 1} C. {w|-3 < w ? 1} D. {w|-3 > w ? 1}