400
David planted a garden that had 3 rows of daisies and 18 flowers in each row. Chyna planted a garden that had twice as many rows and three times as many flowers in each row. How many daisies did Chyna plant? Write a multiplication problem to solve. Assess the reasonableness of your answer.
Chyna will plant 324 daisies in her garden. I know my answer is/is not reasonable because ...