Stanford EPGY Math is designed for students in kindergarten through middle school, and is available to all families looking to boost their children’s academic performance. You can learn more about it here: http://www.education.com/e-learning/stanford-epgy/
You might also contact your child's school or school district to see if they offer any 9th grade math programs, clubs or tutoring on campus. If located in the U.S., you can use SchoolFinder to research the school or district's phone number: http://www.education.com/schoolfinder
Below are some activities and worksheets you can also do with your child to sharpen math skills. Thanks for asking!