What is (13X + 9k)+(17x +6k), simplified?

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

Shared decision making is always a positive strategy to take

Find the value of the variable and the length of each chord for #5 and #6.