Evaluate 2w^2-3w+7 when w=-2

How do i do this? i don’t understand

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm