Answer :

Insidious

2 decimals which are equivalent to 7.7 are--- 7.70 and 7.700

Hope it helps!

Can you please please choose mine as the brainliest answer as I need it for me to get to the next level.

nicegirl100
Two decimals that are equivalent to 7.7 are 7.70 and 7.700 because the zeros at the end don't matter. 
I need one more for the braniest please pick me as braniest