20.83 would be written as:
20 83/100
This is why.
The 20 is the whole number
The 83 is is the tenths and hundredths place
Since the 3 is in the hundredths place, it makes the 83/100 what it is.
So, the answer would be 20 and 83/100
2 half dollars just mean a dollar. In that case, that's 10 dimes. (10*10=100)
The solution of the given expression will be 
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition,substraction, multiplication and division.
The given expression will be calculated as:-

Hence the solution of the given expression will be 
To know more about Expression follow
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Answer:
B. (0.61)
Step-by-step explanation:
Well, first I created venn diagram to help separate my work, then I subtracted .22 from each "probability sections" then I added them up to get .61
Work explains a lot.
Hope it helped. :)
Answer:
multiply 77 by 10 which is 770 then you multiply it by 5 which is half of 10 so 385 then add them together and you get 1155