let f(t) be the tones of fish, in millions, commercially caught t years after 1950. in the function f(t), the independent variable is \ and the dependent variable is \. When f(60)=63., the 60 represents blank and the 63.7 represents what?

Pls never taught i’m really confused and i rlly need

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?

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your