book Maths Puzzle Numerical Ability

please help me solve this inequality

j - 8 < 4
-
4

( j over 4 -8 < 4)

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book Other Question

How would I solve the inequality of x - 7/x + 2 < 0. I came up with the answer to this problem -2 < x < 7. During an election campaign a candidate gave away 5000 little advertisements. The pens she gave away cost $.23 cents each and the little bumper stickers cost $.14 cents each. He spent a total of $970.00. How many pens did he give away?

thanx