The graph shows the cost per day for renting a car. which statement is true

Can someone answer these problems for me

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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?