Find the slope of the line passing through the points D(10,8) and E(-4, 4)

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?