Find the circumference. (In terms of pi)

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

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Which of the following is an equation of a line parallel to the equation y=4x+1?