Ana, bill, charlie, danielle and hope sit in a circle, in that order. danielle says "100”, hope says “99”, ana says “98”, and they continue like that substracting one each time. if they continue like that, who says “34”?include mathematic process

Taking algebra two apex courses and need with these questions

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?

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?