Put the inventions in order first to last A. Vacuum Tube
B. Integrated Circuit
C. Transistor
D. Microchip

Describe three characteristics of at-risk drivers. a. b. c. describe three characteristics of safe drivers. a. b. c. describe three driver errors that could cause a collision. a. b. c. how will this information affect you as a driver now and in the future? (2-3 sentences)

To maintain clarity and focus lighting might be needed

Iam doing microsoft excel and i have do formulas, can some explain to me how do them?