PROVO, Utah — Eric Mika scored 22 points and grabbed 10 rebounds — his sixth straight double-double — to lead 13 BYU scorers as the Cougars walloped Pepperdine 99-70 on Thursday night, remaining just behind No. 4 Gonzaga and No. 23 Saint Mary’s in the West Coast Conference standings. BYU (14-6, 5-2 WCC) broke open