Answer:
It is the 1st answer.
Step-by-step explanation:
The sum of the first natural numbers is 20100
So will be 27 -50 - 81 +81 = - 23
hope this will help you
Well, there are 100 pennies in a dollar, and 10 dimes in a dollar. So, the ratio could be 10:100, or 1:10.