Line a has a slope of -8/7. Line r is perpendicular to q. What is the slope of line r

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

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?