Question

(10,49-s):4,02=0,805

Answer 1

(10,49 - s):4,02=0,805 
(10,49 - s) = 0,805 * 4,02
10,49 - s = 3,2361
s = 10,49 - 3,2361
s = 7,2539

Answer 2

спасибо большое

Answer 3

10,49-s=0.805*4.02
-s=3.1261-10.49
s=7.2539