book Maths Puzzle Numerical Ability

Solve each inequality. State the solution set and describe the graph in words.
w^2+3w<18

Thanks a bunch

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book Other Question
a trader alows a discount of 10% on the marked price. However he still makes a profit of 17% on cost price.
Find (a) the profit % if sold at the merked price
(b) the profit % if he allows a discount of 5 % only on the marked price I'm really stuck on the problem if someone could answer this fo me it would be a big help
problem: divide 3a^2-a^3b-15a^2b^2+11ab^3-2b^4 by a^2+2ab-b^2