Solve the problem.The difference of the reciprocals of two consecutive integers is 1/72. Find the integers.
A. 8 and 9 or -8 and -9
B. 9 and 10 or -9 and -10
C. 36 and 37 or -36 and -37
D. 7 and 8 or -7 and -8
Answer: A
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Solve using the elimination method. Use a graphing calculator to check your answer. 4x + 9y = -45-2x + 7y = -35
A. (-1, -4) B. (0, -4) C. (0, -5) D. No solution
Solve the problem.A tourist in France wants to visit 11 different cities. How many different routes are possible?
A. 11 B. 3,628,800 C. 121 D. 39,916,800
Solve the equation for the indicated variable.2 - (n - 0.2x) = 3n for x
A. 
B. 10 - 20 n
C. 10 n - 2
D. 20 n - 10
Solve the problem. Assume that simple interest is being calculated in each case. Round the answer to the nearest cent unless otherwise indicated.John Lee's savings account has a balance of $1130. After 9 months, what will the amount of interest be at 5.0% per year?
A. $56.50 B. $125.56 C. $65.51 D. $42.38