Write an equation for a line perpendicular to the x-axis that passes through the point (5,1)

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

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