1/3 of a number is 12 what is 1/2 of the number

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

How is working backward similar to solving an equation?

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.