Answer
7.70 and 7.700
Explanation
Equivalent decimals are decimals numbers that are equals.
The number of decimal places does not make the decimals not to be equivalent.
Decimal number is a fraction whose denominator is 10 or a power of 10.
7.7=77/10=770/100=7700/1000
7.7 = 7.70 = 7.700
The two decimals that are equivalent to 7.7 are:
7.70 and 7.700