Ответ:

1)import math

x = input()

print(math.modf(x)[0])

2)

A = [22, 55, 445, 12, 2]  

def F(x):

   if x < 22:

       return x

import numpy as np

numA = np.array(A)

B = list(map(F, numA))

mn = 1

for elem in B:

   if elem != None:

       mn *= elem

print(mn)

3)

A = [22, 55, 445, 12, 2]  

def F(x):

   if x >= 10 and x <= 50:

       return x

import numpy as np

numA = np.array(A)

B = list(map(F, numA))

mn = 0

for elem in B:

   if elem != None:

       mn += elem

print(mn)

4)

A = [22, 55, 445, 12, 2]  

mn = 1

for i in A:

   mn+=i

print(mn/ len(A))

A - массив введённых чисел