Patrick is plotting points to show a relation that is not a function. Which point could be the next point that Patrick plots on the graph?

Which value is not a solution of 8x^3 – 1 = 0

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?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?