Figure RSTU is a square. the slope of ST is -1. What are the slopes of RS and RU?
A. RS: -1 ; RU: -1
B. RS: -1 ; RU: 0
C. RS: 1 ; RU: -1
D. RS: 1; RU: 1

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Ineed to know the answer to this algebra question.