A subsequent question in the same homework asked about a single mother who is trying to support her son by working as a pimp and a prostitute.
It asked what was her third means of support, including another formula for the options, bookie, drug dealer and nightclub dancer.
Pennridge School District said it had received a number of complaints about homework “which contained adult content without a proper context”.
“The homework worksheet in question was downloaded from a website that allows teachers around the world to share educational resources.
“It is not part of our approve curriculum.”
But a Twitter user, @PennridgeReform, who tweeted an image of the assignment, commented: “How can we trust the teacher with the kids’ education when these questions are permitted?”