Answer:
20/81
Step-by-step explanation:
Without parentheses, it is hard to tell what you are dividing. We assume you want ...
(4/9)/(9/5)
Then ...

_____
As written (without parentheses), your expression is evaluated left to right, so evaluates to ...
4/(9·9·5) = 4/405
The expression that represents the number of days until only 10% remains is
T((d) 10%) = 100 • (1/2)^3.322
Answer:
13 and 7
Step-by-step explanation:
6 and 1/2= 13/2. 13/2*1/6=13/12 so they spent 1 and 1/12 of an hour on recess
Simple, .3 centimeters a day.
3/10=.3