Simplify the expression.1 + 9(x + 7y)
A. 1 + 63xy
B. 10x + 7y
C. 1 + 9x + 7y
D. 1 + 9x + 63y
Answer: D
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Sketch the graph and show all local extrema and inflection points.y = x
4
A. Local maximum: 
Local minimum: (10, 0)
Inflection points: 
, (10, 0)
B. Local maximum: 
Local minimum: (10, 0)
Inflection points: 
C. Local minimum: (10, 0)
No inflection points
D. Local maximum: 
Local minimum: (10, 0)
Inflection point: 
Use a day counting table to find the exact number of days from the first date to the second date. Assume the year is not a leap year unless otherwise indicated.January 4 to November 5 (the year is not a leap year)
A. 309 B. 303 C. 305 D. 308
Decide whether the figure is convex or concave.
A. Convex B. Concave
Solve the triangle, if possible. If the triangle represents the ambiguous case, solve for all possible triangles. Approximate values to the nearest tenth when appropriate.
A. ? = 60°, ? = 60°, c = 28.1 B. ? = 90°, ? = 60°, c = 28.1 C. ? = 60°, ? = 90°, c = 28.1 D. No solution