HELP please NOW

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if