0
Anonymous
90 because...
4/5=.8
x•.8=72
72/.8=90
(• is a multiplication sign, so you don't get it confused with x, which is equal to 90)
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Thirtyeigththirtyfifth
Four fifths IS anumber.
12
There are 4......
Add 1/5 to it.
Two-fifths.Half of four is two, so half of four-fifths is two-fifths.