Solve both 5 and 6 questions. Please tell the answer

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

The sum of two numbers is 86, and their difference is 20. find the two numbers