FOR EXAMPLE, IN THE US PEOPLE TIP 15 TO 20 PER CENT OF THE BILL IN...

4. - DE KT ANH 8 TEST 2 THI DIEM CHUAN XAC CO DAP AN
DE KT ANH 8 TEST 2 THI DIEM CHUAN XAC CO DAP AN

4. For example, in the us people tip 15 to 20 per cent of the bill in restaurants or cafés.