A nurse mixes 40 cc of a 70% saline solution with a 20% saline solution to produce a 36% saline solution. How much of the 20% solution should he use? 00
The amount of 20% saline solution needed is
CC.
B

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