Solve the problem.The sum of the reciprocals of two consecutive integers is 9/20. Find the integers.
A. 9 and 10
B. 4 and 5
C. 3 and 4
D. 5 and 6
Answer: B
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Solve the problem.The following graph
A. has several Hamilton circuits, none of which contain the edge BC. B. has no Hamilton circuit. C. has several Hamilton circuits, all of which contain the edge AD. D. has a single Hamilton circuit (and its mirror-image circuit). E. none of these
Solve.t - 9 = 12
A. -21 B. 3 C. -3 D. 21
Solve the problem.Mary lives on a corner lot. The neighborhood children have been cutting diagonally across her lawn instead of walking around the yard. If the diagonal distance across the lawn is 
and the longer part of the sidewalk is twice the shorter length, how many feet are the children saving by cutting across the lawn? Round to the nearest foot if necessary.
A. 10 ft B. 40 ft C. 17 ft D. 13 ft
Express in terms of sums and differences of logarithms.log15
A. log15n - log157 - 
log15m
B. log15(7
) - log15n
C. log157 + 
log15m - log15n
D. log157 ? 
log15m ÷ log15n