What existed before the universe?​

How does the use of e-mail benefit business communications? it can be sent at any time. it is faster than regular mail. it improves writing skills. it is less expensive than using a courier. it reduces the need for proofreading.

How is a wan different than a lan? both connect computers, but only wan users don’t need the same operating system. both are peer-to-peer networks, but only a wan requires networking hardware. both network computers, but only a wan can cover larger geographical ranges. both connect computers to the internet, but only wan connects to the cloud.

Write a program to convert a person’s height in inches into centimetres and their weight in stones into kilograms. (1 inch = 2.54 cm and 1 stone = 6.364 kg) i need .