Solve the problem.In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 
Find the Celsius temperatures at which the reaction may occur. 
A. C < 285.19°
B. C ? 285.19°
C. C ? 60.37°
D. C ? 60.37°
Answer: D
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Evaluate the integral.
A. 144 B. 3,840 C. 960 D. 1024
Determine the equation of the given line, as well as the slope of the line. If the slope is undefined, state this.
A. y = x - 8, m = 1 B. y = -4, m = 0 C. x = -4, m = 0 D. y = x - 4, m: undefined
Solve the equation.
= 
A. no solution
B. 
C. 
D. 
Solve by graphing. Label the axes and show where the solution is located on the graph.The graph depicts a relationship between scores achieved on an unspecified standardized test and family income. Suppose the score for a test is 480 when the family income is $25,000 and is 530 when the family income is $55,000. Let x be the income and y be the score of the test. Graph the two given pairs of incomes and scores. Assume that the relationship is linear. Draw a line though the two previous points. From your graph, estimates the score if the family income is $40,000.
A. 
555
B. 
505
C. 
530
D. 
580