A compound sentence...

A compound sentence is a sentence with more than one subject or predicate.

Explanation:

An example is "The drought had lasted now for 10 million years, and the reign of the terrible lizards had long since ended".

being ignored by someone and then accepting the fact was really tough

we know that, volume of a rectangular prism is given by :

✿   {length × width × height}

given : the length of rectangular prism = 5.5

given : the width of rectangular prism = 6

given : the height of rectangular prism = 3

⇒ the volume of given rectangular prism = {5.5 × 6 × 3}

⇒ the volume of given rectangular prism = 99