Two polygons have a similarity ratio of 4: 5. if the perimeter of the first one is 10 inches,
then what is the perimeter of the second?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?