Q.Tropical hibiscus
I have a tropical hibiscus. It sprouted new growth at the bottom of the plant. Should I cut these off or let them grow? I have it in a pot in the house.

You let them grow. Tropical hibiscus bloom on new growth, not the old - which is why it is advised to prune tropical hibiscus back by at least half in late winter or early spring.
For more information on tropical hibiscus, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-container-care.htm