2 si 13 repede corona si 25 p


2. a) C, A, B, D;
b) A, C, B.
13.
n/63<11/8 => n<(63x11)/8
<=> n<86,625
7 | n
din astea 2 => n= {7; 14; 21; 28; 35; 42; 49; 56; 63; 70; 77; 84}