3. what is the simplified form of x+4/7 - x+3/x+5

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

The equation line of cd is y=-2x-2. write an equation of a line parallels to line cd in slope-intercept form that contains point (4,5)

Barbara is tiling her craftroom floor with square tiles.she wants 6/10 of the square tiles to be red.if she used 18 red tiles,how many square tileswill be used to cover the floor?