About: http://webisa.webdatacommons.org/248390938

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It guides you from basic operations, such as addition and subtraction, up to simplifying quadratic equations and more.
http://www.w3.org/ns/prov#wasQuotedFrom	alison.com