exam Maths Puzzle Numerical Ability

Find the midpoint of the line segment PQ

P(4,9), Q(1,9)

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exam Other Question

Write an equation for the following using n as the variable. Then solve for n.

Three-fourths of a number equals 3 times the number increased by 9.

Hope you can help. Thanks.

Jill Solve the following quadratic equation by completing the square:

x^2 - 6x - 3 = 0