Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The number of video stores in a region recently decreased from 144 to 102. Find the percent decrease.
A. 29.2%
B. 70.8%
C. 242.9%
D. 41.2%
Answer: A
Mathematics
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The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose second?
A. BF B. AB C. BD D. AE E. none of these
Mathematics
Use the given graph to determine the limit, if it exists.
f(x)
A. 
B. 4
C. 3
D. does not exist
Mathematics
Identify the property of real numbers illustrated in the statement.1 ? (-2.3) = -2.3
A. Inverse property of addition B. Identity property of addition C. Inverse property of multiplication D. Identity property of multiplication
Mathematics
True or False?
1. (sin x + cos x)² = 1+sin 2x
2. cos(x+y) = cos x + cos y
3.  figure 1.png)
Mathematics