Mary invested same amount of money in two bond funds for 1 year. They pay interest at rates that differ by 4%. Money invested in the first fund earns $360, and money invested in the second fund earns $600. Find the bigger rate of interest.
A. 6%
B. 7%
C. 11%
D. 12%
E. 10%
Answer: E
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Calculate the value of the following numerical expression.
÷ 
A. 
B. 
C. 
D. 
Use a quantifier to make the following true or false, as indicated, where x is a natural number.x - 13 = 13 - x (make false)
A. For x = 13, x - 13 = 13 - x. B. There exists a natural number x such that x - 13 = 13 - x. C. There is no natural number x such that x - 13 = 13 - x. D. At least one natural number x exists such that x - 13 = 13 - x.
Solve.25x2 = 9
A. 
B. 
, - 
C. 
, - 
D. 
The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 25 for x2 = 3, s1 = 2 B. Maximum at 3 for x2 = 6, s1 = 2, s2 = 8 C. Maximum at 15 for x2 = 3, s1 = 2, s3 = 8 D. Maximum at 20 for x2 = 3, s3 = 8