Learn how to calculate the variable cost ratio to balance production costs and revenues. Understand its role in optimizing profit margins and business decision-making.

Science teacher Eva Acton with Sam O’Farrell, from Drumcree, on left, and on right, Connor Cassidy, whose project is the cleverly-titled ‘Gaitkeeper’.

The best new features and fixes in Python 3.14 Released in October 2025, the latest edition of Python makes free-threaded ...

The native just-in-time compiler in Python 3.15 can speed up code by as much as 20% or more, although it’s still experimental ...

Dee Alford’s red-zone interception stopped a potential go-ahead drive by New Orleans, and the Atlanta Falcons beat the Saints ...

Norman Powell scored 36 points and Bam Abdebayo added 15 points and 14 rebounds as the Miami Heat extended their winning ...

Inkjet or laser? Need just printing, or have to scan and copy, too? Seeking low-cost ink, or a low-cost printer? Here's how to choose the right printer for home or work, backed by our top lab-tested ...

Need to scan, copy, or fax, in addition to printing? An AIO printer is what you want. Find the right multifunction machine based on our in-depth reviews and expert advice. Most of my current work for ...