The volume of a solid right pyramid with a square base is V units^3 And the length of the base edge is Y units. Which expression represents the height of the pyramid?

- 3v/ Y^2 units

-(3v-y^2) units

-( v-3y^2 ) units

- v/ 3y^2 units

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.