How do you write 81.7% as a decimal

Can anyone me with 32,33,36,37,and 40.

If i have 20$ and i gave 5$ away how much i got

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.