If the temperature was -3 degrees in the morning and 8 degrees in the afternoon the change in the temperature during that time

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.