The perimeter of an equilaterak triangle is 858 millimeters. find the length of each side

3x + 4y = 5 x- 3y = -7 solve by substitution

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?

What is y times x by? y is __ times x