18% of what number is 22?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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?

Which table shows a proportional relationship between miles traveled and gas used?