Who evet can do this please help

What fraction of one year is 8 months

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?