A: 14 fifths
Proof:
1/5 = 0.2
2.8 is desired sum of fifths
Expression
0.2X=2.8
X= 2.8/0.2
X=14
Four fifths of 35 is 28.
56
22.4
28
28%
28
7/25 = 28%
7 fifths
There are two fifths in four tenths.
One is five fifths. Five fifths and four fifths is nine fifths.
about 328.4 fifths :)
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