“B+ MOM (An Enthusiastic Guide to Imperfect Parenting)” comes to the Matrix Theatre from Wednesday, Oct. 7, through Wednesday, Oct. 28. Rogue Machine presents the new comedy written and performed by Melissa Greenspan. A mother has spent 17 years anticipating the day she will launch her daughter from the nest. Will she be able to squeeze in every crucial life lesson on the night before high school graduation? Showtimes are at 7:30 p.m., Wednesdays. Henry Murray Stage, Matrix Theatre, 7657 Melrose Ave. matrixvisitingartist.ludus.com.