2-3k because the difference between something means it is subtraction and the product of 3 and k would just be 3k since you don't know what k is.
Answer:
x = 36.3°
using tane rule:

Here!
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( rounded to nearest tenth of a degree)
Answer: a. $128.125
Step-by-step explanation:
The standard error of the mean is given by :
, where
= population standard deviation , n= sample size.
Given: 
n= 256
Then, the standard error of the mean:-

Hence, option a. is correct.
Answer:
=−6
Step-by-step explanation: