The number of spelling words Lucas still to memorize n days after he began studying for a spelling bee is defined by the arithmetic sequence f(n) = 200 - 12(n - 1) . How many words does Lucas still have to memorize days after he began studying for the spelling bee?

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.