Solve the equation 2.2x=3

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Which of the following are accepted without proof in a logical system? check all that apply.

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x