Can someone help me please!

What is the reflection image of (5,-3) across the line y = -x?

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.