PLEASE HELP, 25 POINTS Which of the following formulas could be used to determine the volume of a cone stacked on top of half a sphere?
Select all that apply.

V = lwh
V = Bh
V = Bh
V = r2h
V = r2h
V = r3
SELECT ALL THAT APPLY

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Which points are solutions to the linear inequality y < 0.5x + 2? check all that apply. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2) (1, 2)

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. true or false?