Find all the root solutions to f(x) = x3 + x2 -8x - 6

How can i differentiate this equation?

The curved part of the figure is the semicircle what is the best approximation for the area of this figure

More than 450450 students traveled to a state park for a field trip. the school allowed 66 students to travel by car, and the rest traveled on 1111 buses, each of which held the same number of students. if there were ss students in each bus, which inequality best represents this situation?