In 2000 do you like population was 281 million people and 208 it was 305 million what was the rate of population change per year

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