Solve questions 11, 12, 13? (show your work), in advance!

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2