The population of a town was 25,000 in the 2000 census and 30,000 in the 2010 census, by what percent did the population increase

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

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.

Solve for the equation x. 2x + 22 = 4(x + 3)