If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 39.7 centimeters, ? = 
radians, A = ?
A. 56.3 cm2
B. 4.5 cm2
C. 176.8 cm2
D. 353.6 cm2
Answer: C
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Multiply in the indicated base.2234 × 34
A. 19014 B. 20014 C. 19914 D. 21014
A traveling salesman's territory consists of the 5 cities shown on the following mileage chart. The salesman must organize a round trip that starts and ends at Louisville (his hometown) and will pass through each of the other four cities exactly once.Mileage Chart
At an average cost of 25 cents per mile, the cheapest possible trip that starts at Louisville and passes through each of the other cities exactly once would cost
A. $551.00. B. $578.25. C. $606.50. D. $541.75. E. none of these
Solve the problem.Christina made a chart summarizing her shop's financial performance over the past three years. 
How much money was made in the months described as "Good"?
A. $400 B. $9600 C. $7200 D. $1200
Determine the order of the matrix.
A. 1 × 4 B. 4 C. 1 D. 4 × 1