How do you turn 3 7/8 into a decimal?

Which linear inequality is represented by the graph? !

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning