Which summation formula is equivalent to the one below?

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

Match each polynomial with its factorization.

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?