Add the numbers using the number line.-4 + 3 
A. 7
B. -7
C. 1
D. -1
Answer: D
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Use the graph to estimate the specified limit.Find 
f(x)
A. does not exist B. 1 C. -1 D. 0
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.
It is possible to take a walk though this town, starting on the South Bank, crossing each bridge once (and only once) and ending
A. on island C. B. back on the South Bank. C. on island B. D. on the North Bank. E. none of these
Find the domain and the vertical asymptote of the function.f(x) = ln x - 6
A. Domain: [0, ?); vertical asymptote: x = 0 B. Domain: (- 6, ?); vertical asymptote: x = - 6 C. Domain: (-?, ?); vertical asymptote: none D. Domain: (0, ?); vertical asymptote: x = 0
Solve the problem.A grain dealer sold to one customer 5 bushels of wheat, 2 of corn, and 3 of rye, for $33.60; to another, 2 of wheat, 3 of corn, and 5 of rye, for $33.80; and to a third, 3 of wheat, 5 of corn, and 2 of rye, for $35.80. What was the price per bushel for corn?
A. $3.60 B. $2.70 C. $3.95 D. $2.20