80 cents
80
4/5 is actually 80/100 when it is re-written. 100 is the dollar and the 80 is cents. c/d.
40 cents
40 cents
60 cents
36 cents.
60 cents
80 cents
Four dimes to a dollar means that there are 10 cents in a dime and 100 cents in a dollar. Therefore, if you have four dimes, you have a total of 40 cents. This is equivalent to 0.40 dollars, as each dime is worth 0.10 dollars.
67 cents
1/5 of a dollar is .20 so 4x.20=0.80 Final answer is $0.80