Answer:
30 green jolos
Step-by-step explanation:
in the problem itself it states this "Balan, who lives on this planet, does a survey and finds that her colony of 140 contains <u>30 green, one-headed Jolos</u> 45 purple, two-headed Jolos; and 75 one-headed Jolos.".
623168
749x832=623168
subtract 2