Need some help :( What is the speed of a jet plane that flies 8100 km in 9 hours?

A. 900 km/sec

B. 900 km/hr

C. 900 meters/sec

D. 900 km/hr/hr

I will give Brainliest !!

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a.what is the independent and dependent variables? b.find the amplitude and the period of the function. c.create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?