can someone these questions
9.( 5 / 8 ) ( 2 / 3 ) = 10 / 24 = 5 / 12 A ;10.( 11 / 12 ) ÷ ( 5 / 7 ) = ( 11 / 12 ) ( 7 / 5 ) = 77 / 60 = 1 17 / 60 D ; 11.3 / 8 B;12.2 5 / 8 = 21 / 8 ; the reciprocical of 21 / 8 is 8 / 21 C ;13.$12.50 * 34.5 =$ 431.25 C ;
