Question

faceți ce puteți vă rog repedeeeeeee❤❤​

Answer 1

2.

$a=31\cdot 75=2325\\b=\frac{2\cdot2325}{3} =1550\\c=\frac{\left(2325-1550\right)3}{25}=91$

3.

$a+b=14\\a-b=\frac{14}{3.2}\\\\a=9.1875,\:b=4.8125$