RALEIGH, N.C. — Kerry Blackshear had 13 points and 13 rebounds Saturday to help No. 12 Virginia Tech beat No. 23 North Carolina State 47-24 in the Wolfpack’s lowest-scoring output of the shot-clock era. Nickeil Alexander-Walker added 11 points for the Hokies (18-3, 7-2 ACC), who led the entire way despite playing without point guard...