Answer:
Olive can plant 4 watermelon plants
Explanation:
Givens
- The garden is 10 square yards.
- Each watermelon plant needs 2.5 square yards to grow.
So, in order to find the number of plants we can have in Olive's Garden, we must divide.

Therefore, Olive can plant 4 watermelon plants, not more. Because all 4 fits exactly in a 10 square yards garden.