Asolid object has a mass of 104 kg and a volume of 1,278 m3. what is its density? 0.081 kg/m3 12.29 g/cm3 132912.00 g/cm3 cannot be determined

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