Answer:
C, D, E
Explanation:
The digit after the decimal point is in the tenths position
If the digit after this is > 5 then tenths digit goes up by 1
If the digit after this is < 5 then the tenths digit remains unchanged
A
78.405 ( the digit after the tenths digit is 0 ) , so
= 78.4
C
78.48 ( the digit after the tenths digit is 8 ) , so
= 78.5
D
78.51 ( the digit after the tenths digit is 1 ), so
= 78.5
E
78.54 ( the digit after the tenths digit is 4 ) , so
= 78.5