Question

1) 2,8 (-3,9)-76,15:15,23;

Answer 1

Пошаговое объяснение:

вот ответь что делать ааааааааааааааа

Answer 2

Пошаговое объяснение:

2,8•(-3,9)-76,15:15,23= -15,92

1) 2,8•(-3,9)= -10,92

2) 76,15:15,23=5

3) -10,92-5= -15,92

Answer 3

It seems like you've provided a series of numbers and symbols without a clear question or context. It's not clear what you would like to know or what operation you want to perform with these numbers. Please provide more information or specify your question, and I'll be happy to assist you.