Answer:
3/5
Step-by-step explanation:
i♀️♀️
students in choir - 12
total number of students - 20
students in choir
-------------------------
total no. of students
12
----
20
3
--
5
x = 10.8
cos 26° = x/12
0.8988 = x/12
x = 10.785
x=9
combine like terms
4+5=9
9+6x=7x
to get 6x with 7x subtract 6x from both sides as its positive
6x-6x=0
7x-6x=x
9=x