Helga and julie are sisters. helga is six years younger than twice julie's age. the sum of helga's age and julie's age is 36. write an equation that can be used to find julie's age, j.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year the population of her town is changing by a constant rate

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?