If a ∥ b and e ∥ f, what is the value of y?

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

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?

15/16 as a decimal rounded to the nearest hundredth