Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-8, -5) and (8, -15); (9, -10) and (1, -15)
A. perpendicular
B. parallel
C. neither
Answer: C
Mathematics
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Decide whether the following is an expression or an equation.20 - 7x2
A. Expression B. Equation
Mathematics
Multiply. Be sure your answer is simplified.
? 
A. 
B. 
C. 
D. 
Mathematics
Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant B to pollutant C.
A. 
B. 
C. 
D. 
Mathematics
Evaluate.100
A. -1 B. 0 C. 10 D. 1
Mathematics