Which formula calculates the total value of a single row of cells across a range of columns in excel

The width of a piece of rectangular land is 5m shorter rhan 1/3 of its length .find the width of the land if the length is 60m,150m.

Worth 50 points answer them bc i am not sure if i am wrong

Which is a characteristic of free and open-source software licenses? a. the source code is unavailable to everyone b. the source code is available only to the government c. the source code is available to all users d. the source code is constantly modified