Jane and Nathalie start from the same point and walk in opposite directions. Jane walks 4 kph faster than Nathalie. After 3 hours, they are 30 km apart. How fast did Nathalie walk?

The sides of a triangle ABC are AB = 15 cm, BC = 18 cm, and CA = 24 cm. Find the distance from the point of intersection of the angle bisectors to side AB.

The angle or inclination of ascend of road having 8.25% grade is ________ degrees?

Solve for ∠β:

Marco is going towards the tower. His distance from the tower is 120 m if the angle of depression from the tip of the tower is 30 degrees. Find the height of the tower. Note: Neglect Marco's height.

Find the equation of the line that intercepts the x-axis at x=4 and the y-axis at y=-6.

Find the slope of the line defined by y - x = 5.

Find the volume bounded by the plane 6x + 15y - 10z - 30 = 0 and the coordinate axes.

Find the area of the triangle which the line 4x - 6y + 12 = 0 forms with the coordinate axes.