Becky learned a total of 6 appetizer recipes over the course of 3 weeks of culinary school. After how many weeks of culinary school will Becky know a total of 20 appetizer recipes? Solve using unit rates.

Robert has 78 tomato lants and 56 cucumber plants .he wants to plant them in rows that only have one type of plant in each row with the same number of plants in each row. how many plants should he put in each row and how many rows of each type of plant will he need