Help, please! How did the case of Gibbons vs. Ogden affect economic practices in the United States?

A. It gave the states the ability to write their own laws to control trade with other states.
B. It allowed the President to create laws relating to trade between states and internationally.
C. It gave private companies the ability to set their own rates when trading with state companies.
D. It allowed the federal government to have some control over trade within and across state borders.

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.