What is the standard form of y=3/8x-4

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14