Can someone please check my work especially number 4 I wasn’t sure so I didn’t many types, is one of them correct or not?

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?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?