Which relation is a function?
{5, 0, –8, –5}
{(5, 0), (–8, –5), (–8, 5), (–5, –8)}
{(5, 0), (0, –8), (5, –5)}
{(5, 0), (0, 5), (–5, –5)}

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

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?

2/3(-6y+9x) expand each expression using the distributive property