The correct option is A $0.65<$0.75<$0.8
Let's express the decimals in terms of fractions to compare like terms.
$0.75=$75100
$0.8=$80100
$0.65=$65100
Now, as the denominator is the same for the three numbers, we can compare the numerators.
65<75<80
∴$0.65<$0.75<$0.8