Three sisters were found living in an abandoned Englewood building with no electricity or heat.
Students can search for schools by location, academic interests, sports and clubs, and test scores.
The new center opened Monday as sexually transmitted infections rise in the area.
Laura Pekarik of the Cupcakes for Courage food truck said she will appeal the ruling.
Nearly $90,000 raised for the three young girls, including a 7-year-old who has never gone to school.
The businesses are from Englewood, Chatham and Roseland.
"I was upfront, honest. We talked about a range of issues," Mayor Rahm Emanuel said.
Despite the snow, one was killed and eight others wounded in shootings Sunday.
He was shot in the head and found unresponsive in a house, police said.
Among those killed was a 23-year-old shot dead inside a fast food restaurant in Greater Grand Crossing.
He was standing with a group of people in the street when he was shot in his neck, police said.
A 23-year-old man was fatally shot in the face inside a fast food restaurant, police said.
A 16-year-old boy shot in his face was among the wounded, police said.
The man was shot in the 8100 block of South Halsted Street.
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