Olivia is buying a travel crate for her puppy. A pet store website lists the dimensions of
different crates, including one that is the right size for Olivia's puppy. The crate is 30 inches
long and 22 inches tall. However, the site does not list the width of the crate, which Olivia
needs to know in order to check whether the crate will fit in her car. She sees that the website
lists the total volume of the crate as 12,540 cubic inches. What is the width of the crate?