Solutions:
we are given that Fred the clown can create 20 animal balloons every 15 minutes.
It mean that Fred the clown can create
baloons every minutes.
In 6 hr and 45 minutes, we have a total of
![6*60+45=360+45=405minutes](https://img.qammunity.org/2019/formulas/mathematics/high-school/fpr1qqdcdaongkjsd92n78nd89ie0wvx7s.png)
So total number of balloons created can be found by multiplying the number of ballons created in one minutes by total number of available minutes.
So number of balloons created
![=405*(20)/(15)= 540](https://img.qammunity.org/2019/formulas/mathematics/high-school/3dgrq9q7oe44ff0forbi7qszfzmljczb7i.png)
It mean that Fred can create 540 balloons in 6 Hrs and 45 minutes.