How many 3 digits numbers greater than 100 can be formed with the digits 3,4,5,0,6,7 of repetition of digits is not allowed? getting confused on the question being asked

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.