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Maths Puzzle
Numerical Ability
What is the standard form of an equation that passes through the points,
(14, 8) and (3, 11) ?
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book Other Question
An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
what is the sum of all positive rational numbers that are less than 10 and that have the denominator of 30 when written in lowest terms?