Can someone help me with this please? I have been stuck on this question for a while and need help

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?

How do you write y-10=2 (x-8) in standard form

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?