The weight of an object on a particular scale is 145.2 lbs. the measured weight may vary from the actual weight by at most 0.3 lbs. what is the range of the actual weights of the edge?

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