An iron ball weighing 10 pounds rests on two smooth, plane-surfaced boards that are inclined at 30° and 60° to the horizontal. To the nearest whole number, what is the pressure on the board from F1?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.