Question

Cathie is making a dress with a stash. The stash needs to be 72.9 inches long, but Cathie's measuring tape is only in centimeters. Which of the following shows the number of centimeters with the correct number of significant digits, that Cathie needs to measure in order for the stash to be 72.9 inches long?

Answer 1

There are $2.54$ centimeters in an inch. 

So do $2.54 * 72.9$ and you get $185.166$.