This is due in a few hours can yall help me

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

Franco wants to double the volume of the cone. what should he do?

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