3k-2=2k+4
-2k. -2k
k-2=4
+2. +2
k =6
Answer:
3
Step-by-step explanation:
18+18 = 36. 42-36 = 6. 6 / 2 = 3
Answer:
The confidence interval is 
Step-by-step explanation:
From the question we are told
The sample proportion 
The margin of error is 
The confidence interval for p is mathematically represented as

=> 
=> 
I just answered this.... :]
x - 0.05x = 57,
0.95x = 57,
57/0.95 = original price
Original price = $60