Why isn't an acer c720 chromebook not on the list?

[Madison Nicole00]

i wan't to download an android app on my acer c720 but i can't

 

[B. Diddy]

Welcome to Android Central! You can see the list of Chromebooks that have or will have Android app support: https://www.chromium.org/chromium-os/chrome-os-systems-supporting-android-apps.

The C720 is fairly old (released in late 2013), and since the support lifecycle for Chromebooks is 5 years, it may be that they did not feel it would be feasible to add Android app support, since this model will stop getting updates next year.