Can’t get #4 to work

Question

Let's imagine you want to buy an ice-cream for 10 of your friends.
Write a program that will take the money you have and the price of one ice-cream, and will output the remaining money only if you can buy that ice-cream for your all 10 friends.

Sample Input
80
7

Sample Output
10

Explanation
7*10 = 70. 10 is remaining money (80-70).

My code:

money = int(input())
price = int(input())
all = price * 10
x = money - all

if money <= 100 and money - all >= 0:
print(x)

Answer 1

if x>=0: print(x)

Answer 2

thanks! I went back and named everything and now it make sense.

money = int(input())
price = int(input())

total = price * 10

remainder = money - total

if remainder >= 0:
print(remainder)

Answer 3

money = int(input())
price = int(input())

if price*10<=int(100):
if (money//price) >= 10:
if(money-price*10)>=0:
print(money-price*10)

... Mine not work :(

Answer 4

This works perfectly

money = int(input())
price = int(input())

total = price*10
#your code goes here
remainder= money-total
if (total>100):
print()
else :
print(remainder)

#All task will complete