For the following pair of equations, predict whether they represent parallel lines, perpendicular lines, or lines that intersect but are not perpendicular.6.7x + 7.7y = 4.6 and 7.7x - 6.7y = 9.2
A. parallel lines
B. lines that intersect but are not perpendicular
C. perpendicular lines
Answer: C
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Use < or > to make a true statement.3.171 ? 3.1702
A. > B. <
Solve the system of equations by graphing.2x - y = 3 y = 1 
A. (1, 2) B. (2, 1) C. (-2, -1) D. no solution
Solve the application.To obtain a certain shade of paint, Peter mixed 4
gallons of white paint with 2
gallons of brown and 1
gallons of blue paint. How much paint did he have?
A. 2
gallons
B. 8
gallons
C. 
gallon
D. 
gallon
If you have ever ridden on a chair lift at a ski area and had it stop, you know that the chair will pull down on the cable, dropping you down to a lower height then when the chair is in motion. The figure shows a gondola that is stopped. Find the magnitude of the tension in the cable toward each end of the cable if the total weight of the gondola and its occupants is 1,900 pounds.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
?a? = 71.6, ?b? = 74.6
?
?
A. 
B. ?
C. ?
D. ?
E. ?