Which fraction is equivalent to ?1/3

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Asap (i need to finish this quick) graph complete the sequence of transformations that produces △x'y'z' from △xyz. a clockwise rotation ° about the origin followed by a translation units to the right and 6 units down produces δx'y'z' from δxyz.

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15