Find the volume and explain your answer round to the nearest tenth!!

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x