How do you solve problems like this Insert a digit to make numbers that are divisible by 24 if it is possible: 12...8. Is it impossible or possible to do this, and what are all the possible digits?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

What is the measure of one interior angle of a pentagon