Please help with this ASAP, I rlly don’t understand if you just add or subtract. 15) What is the to number of years shown on the timeline?

The timeline chart is right in the picture and so is the question (extra points on this one)

What would happen if people from different races were seperated today

The american public was excited by the invention of the railroad system. true false

Mike and his wife, amanda, are arguing about his in-laws. mike doesn’t want them to visit because they fight all the time when they come to the house and he is worried about the effect that their fighting is having on mike and amanda’s children. amanda finally yells out: “what about our fighting? ” mike replies, “well, that’s different. we fight because we’re having a disagreement, they fight because they hate each other! ” this is an example of