S= R- 1/3R
The first problem s=18 r-= 6
This is how it works
Use S-= R-1/3R
12= 18-1/3(18)
12= 18-6
12=12
1 1/3 - 5/6
Find common demoninator which is 6.
Then do 2*1=2.
Now you got 2/6 - 5/6 = -3/6
Simplify:
-3/6=-1/2
Then combined answers.
1 - 1/2 = 1/2
Final answer is 1/2
C as when they put more hours into the social media they will study less and less which leads to less test scores
3.) (2,1), (4,2), (6,4), (7,5), (8,6)
