Ok so we can state that for 5 days he gets 80 dollats meaning that for 1 day he should get 16 dollars i.e
80 dollars -> 5 days
80/5 = 16
1 day -> 16 dollars
Now find the amount of money earned for 14 days by multiplying by 14.
16*14 = 224
14 day -> 224 dollars.
Hope this helps :).