What is the domain of the equation for the function `A\left(x\right)=x^{2}`?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?