Fill in the missing factor.10x2 - 21xy - 49y2 = (5x + 7y)( )
A. x - 49xy
B. 7x - 2y
C. 2x - 7y
D. 2x + 7y
Answer: C
Mathematics
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A. - 
B. 
C. 
D. 
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Solve.How long will it take for the population of a certain country to double if its annual growth rate is 3.4%? (Round to the nearest year.)
A. 1 year B. 9 years C. 59 years D. 20 years
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Find an equation of the line that has the given slope and contains the given point. If possible, write your equation in slope-intercept form.m = -3; (7, 8)
A. y = -3x - 29 B. x = -3y - 29 C. y = -3x + 29 D. x = -3y + 29
Mathematics
Solve the equation: 
a. {9} b. {-8} c. {4} d. {0}
Mathematics