Need help don’t know how to do this

Can someone me with this problem . show your work .

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq