Answer:


Step-by-step explanation:
Nathan's score is 11 less than 2 times Zac's score.
Let Z points be Zac's score and N points be Natan's score. then
2 times Zac's score = 2Z
11 less than 2 times Zac's score = 2Z -11
So, N = 2Z - 11
1. If Z=6, then 
2. If Z=7, then 
3. If Z=8, then 
4. If Z=9, then 
Thus, four other possibilities are

From the first equation
6x - y = 1
6x - y - 1 = 0
6x - 1 = y
Substituting we get
4x - 3(6x - 1) = -11
Answer:
c. Cos 52 = 17/c
Step-by-step explanation:
sin(x) = cos(90-x)
9 = 2(6) - b
9 = 12 - b
-3 = b
The worst case is when you pull 4 out and have 4 different colors. the 5th sock MUST match one of these. 5 is the answer