What is the controlling idea? every entrepreneur should advertise one’s products on the internet. the internet has countless forums on which people share meaningless posts. social media has a valid purpose as an inexpensive, creative marketplace. advertising products on the internet is inexpensive compared to television.?

One of the author’s purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with . . enormous speed