How to calculate confidence interval for population standard deviation?

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?

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?