Please help me

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale