By what percent will the number changed if": it was doubled

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew