The ratio of the numbers of Ann's picture cards to the number of Wendy's picture cards was 7:8. After Wendy gave 8 picture cards to Ann, they each had
the same number of picture cards. How many picture cards did they have
altogether?

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