Why did the train passengers let William back on board without proof.

Match these milestones in communication history with their correct dates. 1. telegraph 2. telephone 3. radio 4. computer 5. television 6. computer networking 7. internet

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

50pts for which group is the poverty rate the highest? poverty: select the best answer from the choices provided. a. asians b. whites c. female headed households d. african-americans