Contain linear equations with constants in denominators. Solve each equation. \(\frac{3x}{5}-x=\frac{x}{10}-\frac{5}{2}\)

Find the point on the line \(y = 5x + 2\) that is closest to the origin.

Use the given graph of \(f(x) = x^2\) to find a number \((\delta)\) such that if \(|x - 1| < (\delta)\) then \(|x^2-1| < \frac{1}{2}\) (Round your answer down to three decimal places.) \((\delta) =\)