North Raleigh Arts and Creative Theatre continues its adventurous summer offerings Friday with the opening of The Magnitude of the Slope, by Paul Sapp. In this 2010 one-act, a stockbroker is about to meet with the FBI in a motel room to blow the whistle on a Ponzi scheme, right after he has a quick rendezvous with his mistress. Of course, complications ensue. 8 p.m. Friday and Saturday; 3 p.m. Sunday. $10-$15 (through July 14). 919-866-0228 or nract.org.
• Friday-Sunday: The 12th annual “10 X 10” short play festival. ArtsCenter, Carrboro. 8 p.m. Friday-Saturday; 3 p.m. Sunday (through July 21). $11-$18. 919-929-2787 or artscenterlive.org
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