Astack of bricks is 3 1/2 feet high.
each brick is 1 3/4 inches high.
how many bricks in the stack?

Identify the number 127 as a rational or irrational. explain

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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.