Question

помагите срочно)))))) номер 336

Answer 1

0.9x-1.2y-x+5y
0.9x-x-1.2y+5y
-0.1x+4.8y
(-0.1×(-8.6)+(4.8×0.3)
0.86+1.44
Ответ: 2.3

Answer 2

номер како

Answer 3

йй

Answer 4

??

Answer 5

336