In a certain city there is a river running through the middle of the city. There are three islands and nine bridges as shown in the figure below.
A graph that appropriate models this situation would have
A. 9 vertices and 3 edges.
B. 3 vertices and 9 edges.
C. 9 vertices and 5 edges.
D. 5 vertices and 9 edges.
E. none of these
Answer: D
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Use the graph to find the value. 
(f + g)(-4)
A. -20 B. -4 C. 8 D. 4
Draw the vector V that goes from the origin to the given point. Then write V in component form 
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A. ?
B. ?
C. ?
D. ?
E. ?
Suppose that we fit a band tightly around the earth at the equator. We wish to raise the band so that it is uniformly supported 7 ft above the earth at the equator. How much extra length would have to be added to the band (not the supports) to do this.
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A. about 37 ft B. about 44 ft C. about 49 ft D. about 35 ft E. about 88 ft
Fill in the blank with one of the words or phrases listed below.
Monomials, binomials, and trinomials are all examples of 
.
A. degree of a term B. degree of a polynomial C. polynomials D. FOIL