If a sphere has a surface area of 36pi. then what would be the volume

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)