exam Maths Puzzle Numerical Ability

The base of a triangle is 5 cm greater than the height. The area is 18cm ^2. Find the height and length of the base

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exam Other Question

Use factoring to solve the equation
6y^2 + 486 = 0
The corner section of a football stadium has 15 seats in the first row and 40 rows in all. Each sucessive row contains 2 additional seats. Howmany total seats are in this section?