Perform the indicated operations and reduce to lowest terms.
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Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. not applicable B. x = 0, y = 0, z = 1; (0, 0, 1) C. x = 2, y = 1, z = 0; (2, 1, 0) D. x = 0, y = 1, z = 0; (0, 1, 0)
Solve.Linda bought a parcel of land for $80,000. Its value is expected to increase by about $900 per year. Her sister, Sally, bought a house for $180,000. The value of Sally's house is expected to increase by about $1700 per year. Write an expression that represents the combined value of Linda's land and Sally's house after x years.
A. (80,900 + 181,700x) dollars B. (80,900x + 181,700) dollars C. (260,000x + 2600) dollars D. (2600x + 260,000) dollars
Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers.[2y + (4x + 5)][2y - (4x + 5)]
A. 4y2 - 16x2 - 40x - 25 B. 4y2 - 16x2 - 20x - 25 C. 4y2 - 16x2 + 40x + 25 D. 4y2 - 16x2 - 40x + 25
Factor, if possible.p3 + 
A. 
B. 
C. 
D. 
