It says to do 81^3/4 and i don’t know how to simplify that

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship