Help me with this, please!

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.