It costs $8.28 for an 18 ounce jar of peanut butter. How much does it cost per ounce of peanut butter?

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

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?