Help first one gets brainllest

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0