Additive area What is the total area

A.70 square feet

B.27 square feet

C.30 square feet

D.35 square feet

I will mark you as brainliest if you get it correct

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?