Factor the difference of squares.4pm4 - 4pn4
A. p(2m2 + n2)(2m + n)(2m - n)
B. 4(m2p + n2)(mp + n)(mp - n)
C. 4p(m2 - n2)2
D. 4p(m2 + n2)(m + n)(m - n)
Answer: D
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Solve by the method of your choice. Identify whether the system has no solution or infinitely many solutions, using set notation to express the solution set.5x + y = 1949 - 9 = 8y
A. {(8, 14)}
B. {(x, y) 
}
C. ?
D. {2.8, 5}
Factor out the largest common factor.3a2 - 9a + 24
A. 3(a2 - 3a + 8) B. 3(a2 - 9a + 24) C. 3(a2 + 3a - 8) D. 3(a2 - 9a + 8)
Solve the problem.If $4900 is invested in an account earning 7% annual interest compounded continuously, then the number of years that it takes for the amount to grow to $9800 is 
Find the number of years to the nearest tenth of a year.
A. 9.9 yr B. 11.9 yr C. 7.9 yr D. 14.9 yr
Divide, and round the quotient as indicated.Divide 861.61 by 0.09 and round the quotient to the nearest thousandth.
A. 9573.944 B. 9573.444 C. 957.394 D. 957.344