Solve the problem.In economics, functions that involve revenue, cost and profit are used. Suppose R(x) and C(x) denote the total revenue and the total cost, respectively, of producing a new high-tech widget. The difference 
represents the total profit for producing x widgets. Given R(x) = 60x - 0.4 x2 and 
find P(100).
A. 313
B. 55687
C. 2000
D. 1687
Answer: D
Mathematics
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Find the greatest common factor.196 and 35
A. 14 B. 1 C. 35 D. 7
Mathematics
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 through this town, starting on the South Bank, crossing each bridge once (and only once) and ending
A. on island B. B. on island C. C. back on the South Bank. D. on the North Bank. E. none of these
Mathematics
Solve the equation.(x - 9)(x + 7) = 0
A. {9, -7} B. {-9, 7} C. {9, 7} D. {9, -9, 7, -7}
Mathematics
Let A = { 6, 4, 1, {3, 0, 8}, {9} }. Determine whether the statement is true or false.3 ? A
A. True B. False
Mathematics