Questions

Sales tax is an additional amount of money you pay based on a percentage of the selling price of goods and services that are purchased.

For example, if you purchase a new laptop Rs. 40000 and live in an area where the sales tax is 6%, you would pay Rs.2400 in sales tax.

Mutex is a program object that allows multiple program threads to share the same resource, such as file access, but not simultaneously. When a program is started a mutex is created woth a unique name. After this stage, any thread that needs the resource must lock the mutex from other threads while it is using the resource. the mutex is set to unlock when the data is no longer needed or the routine is finished.

The ozone gas present in the atmosphere absorb ultraviolet radiation. It is spread as a ozone layer throughout the stratosphere.

The term just noticeable difference is synonymous with difference threshold and refers
to the detection of change.