Classify the equation as a contradiction, an identity, or a conditional equation. 4(3x - 20) - 12x + 80 = 0
A. Conditional
B. Contradiction
C. Identity
Answer: C
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This model is of the form f(x) = mx + b. Determine what m and b signify.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked.
A. 32 signifies the hourly rate, and 70 signifies the overhead charge. B. 70 signifies the hourly rate, and 32 signifies the overhead charge. C. 102 signifies the cost for an on-site inspection. D. -70 signifies the hourly rate, and 32 signifies the travel cost.
Graph the solution set of the system of inequalities.
x + 
y ? 35x - 2y ? -10
A. 
B. 
C. 
D. 
Find the pair of numbers whose product and sum are given.Product: 45 Sum: -18
A. -15 and 3 B. 15 and 3 C. -15 and -3 D. 15 and -3
Multiply.(9y + 11)(7y2 - 2y - 5)
A. 63y3 - 18y2 - 45y + 11 B. 140y2 - 40y - 100 C. 63y3 + 95y2 + 67y + 55 D. 63y3 + 59y2 - 67y - 55