Height of oak tree is 30 meters.
Solution:
Given that Bianca plants a tree at the park ; Height of the tree planted by Bianca = 0.3 meter
Nearby the tree planted by Bianca, there is an Oak tree.
An oak tree is 100 times taller. Need to determine height of an oak tree. As oak tree in 100 times the tree planted by Bianca,
![\begin{array}{l}{\Rightarrow \text { Height of oak tree }=100 \mathrm{x} \text { height of the tree planted by Bianca }=100 \mathrm{x} 0.3 \text { meters }=30} \\ {\text { meters }}\end{array}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1yiacw2p2a50l8pp3qvkra53bvd9pu2jw6.png)
Hence, the height is 30 meters.