Knee effusion, colloquially known as water on the knee, occurs when excess fluid accumulates in or around the knee joint. There are many common causes for the swelling, including arthritis, injury to the ligaments or meniscus, or when fluid collects in the bursa.
Private for-profit schools include primary and sec-ondary schools, colleges and universities that provide education equivalent to that furnished at public schools. For-profit schools must pay sales or use tax on purchases of taxable goods and services. Private for-profit career schools, such as business schools, licensed under M. S. Chapter 136A, must pay sales or use tax on purchases of taxable goods and ser-vices.
1 The National Center for Education Statistics estimates the average private school tuition for elementary students in 2007-2008 was $6,733 for all private schools; $4,944 at Catholic schools; $6,576 at other religious institutions; and $15,945 for nonsectarian schools. For working parents, before and after school care can cost $100-$500 or more a month at public schools (it might be free for low-income students) or $300-$800 or more monthly at private schools. 2  Private schools and some public schools require students to wear a school uniform.