Solve the inequality. Graph the solution set and write it in interval notation.x - 3 < 3
A. (-?, 0)
B. (-?, 0]
C. (-?, 6)
D. (6, ?)
Answer: C
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Write the expression without parentheses.-(7n + 9w + 2g)
A. 7n - 9w + 2g B. 7n + 9w + 2g C. -7n - 9w + 2g D. -7n - 9w - 2g
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 9 degrees? (Round to the nearest foot.)
A. 30 feet B. 45 feet C. 12 feet D. 67 feet
Solve the system of equations.
A. (5, 5) B. (5, -5), (-5, 5) C. (-5, -5), (5, 5) D. No solution
Assume x and y are functions of t. Evaluate dy/dt.x2 ln y = -3 + xey; dx/dt = 3, x = 4, y = 1
A. 1
B. 
C. 
D. 0