(3x^-4)^2
= ( 3/x^4)^2
= 9/x^8

3^(-5)
= 1/3^5
= 1/243

“The four levels of information richness in business communication are as follows: face-to-face communication, spoken communication electronically transmitted (telephone or voicemail), personally addressed written communication (personal messages), and impersonal written communication (impersonal messages)” (Consador, 2010). The aforementioned levels are also message types that result from business trends in which most all business communications will result. For example, the trend of PDA cellular devices as a form of business communication will result in telephone communication, email, instant message, or text message.

(4s^7)^5 = 1,024s^35