Express as a single fraction, as simply as possible, 1/(2x) + 2/(5x) .

1. (a)Express as a single fraction, as simply as possible, 1/(2x) + 2/(5x) .[1]
2. (b)Simplify 4(3x - 2y + 1) – (5x – 3y + 1) .[2]
3. (c)Solve 3x² − x − 5 = 0, giving your answers correct to 2 decimal places.[3]
4. (d)(i)Draw the graph of x + 2y = 5.[2]
5. (d)(ii)Shade the region defined by these inequalities and label it R. x ≤ 3 y ≤ 4 y ≤ 2x x + 2y ≥ 5[1]

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