You can write protect your Power Point presentations via some external applications. These are security applications that make it write only.
The idea is to search online sources (I would suggest you start at Wikipedia) about "arithmethic progression", and write the main ideas in the PowerPoint presentation.
Acknowledge.
it s hard
Generally the terms 'authority' and 'power' are used interchangeably.
Go to File--> Save as... when the Save As dialog opens - 1. choose a folder 2. write the file name 3. in the 'Save as Type' list - choose 'Power Point Show - PPS' (in PowerPoint 2010/2007 it is called 'Power Point Show - PPSX')
Write protect what ?? Many different things that you can write protect so it depends on what it is that you want to do that too
1.5 x 107
Notes pane is a feature of Power Point. This is a place where you can write notes that pertain to the current slide you're showing to your audience. You can also print the notes to share with the audience or print them to use during your presentation.
Write the number starting with the first non-zero digit and put the decimal point after this digit; then multiply it by 10 to the power of the number of digits to move the decimal point to get it back to where it was originally, if to the left make the power negative. → 675 = 6.75 x 10²
Go into clubs or guestbooks and write stuff to let people know you more or edit your presentation.
8.2 x 105 = 820,000
1.5 x 107 = 15,000,000