[cal828]

R7

$1 P4 7//1,2,5,9//1,4,5,7//3,5,8=$48

R9

$2 Tri 4//1,5,7//1,5,6,7=$18

$2 Tri 1,5,7//4//1,5,6,7=$18

$4 Tri 4//1,7//1,5,7=$16