7. From a spot 60' from the base of a building, Shanav measures the angle
of elevation to the top of the building
to be 48°, and the angle of elevation
to the top of an antenna on top of the
building to be 56º.
a) Find the height of the building.​

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)

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.