Afreight train is traveling 30 miles per hour. an automobile starts out from the same place 1 hour later and overtakes the train in 3 hours. what was the rate of the automobile.

Find the indicated value, where g(t) = t^2-t and f(x)= 1+x a. -2 b. 0 c. 2 d. 8

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d. x+y=2