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Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex