4.259 x 10 ^-7 = ???

it needs to be in standard form

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

b

step-by-step explanation:

the word superfluous means unnecessary

your answer would be 12