exam Maths Puzzle Numerical Ability

A boy who is 4 feet 5 inches tall stands near a street light that is 15 feet tall. Find a function that models the length L (in feet) of his shadow in terms of his distance d feet from the base of the street light

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exam Other Question
-(-12+19) |9/4-17/8|+|-1/2| Write three quadratic equations with a,b,c (coefficients of x^2, x and the constant) as
1. integers
2. rational numbers
3. irrtional numbers