Solve the problem.A restaurant offers a choice of 4 salads, 7 main courses, and 2 desserts. How many possible 
meals are there?
A. 112 possible meals
B. 28 possible meals
C. 13 possible meals
D. 56 possible meals
Answer: D
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane; range: real numbers > 0; level curves: ellipses 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: ellipses 
C. Domain: all points in the xy-plane except (0, 0); range: real numbers > 0; level curves: ellipses 
D. Domain: all points in the xy-plane except (0, 0); range: all real numbers; level curves: ellipses 
Find the first two nonzero terms of the Maclaurin expansion of the given function.f(x) = sec2 x
A. 1 + x2 + ... B. 1 + 2x2 + ... C. 1 - 2x2 - ... D. 1 - x2 - ...
Rationalize the denominator. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Find the sum.1 + 3 + 5 + ... + 1415
A. 502,681 B. 499,849 C. 501,264 D. 501,972