Using binomial distribution find the probability of 4 success in 6 trails when p =0.2

What is the approximate circumference of the circle shown below?

Consider the function f(x)=-5x+3 what is f(-2)

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?