Answer:
Donald needs 3 days to earn 3420 dollars
Step-by-step explanation:
Donald sells 760 marbles everyday. He sells each marble for 1.5 dollars
amount collected in one day= [tex]760 \cdot 1.5=1140 dollars[/tex]
In one day the amount earned is 1140 dollars
we need to find the number of days needs to earn 3420 dollars
Number of days needed is [tex]\frac{3420}{1140}=2.842[/tex]
So its around 3 days
Donald needs 3 days to earn 3420 dollars
