exam Maths Puzzle Numerical Ability

Can someone please help me with these problems-

7x+3>9x-5

and

5x-5<2x+10

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exam Other Question

1. In this problem, we will analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for what is the definition for a pair of straight lines ? can we give it in terms of eccentricity?