Answer:
14y-13y² is the answer. sorry for dirty handwriting
Answer:

Step-by-step explanation:
![24 = \frac{x}{\frac{3}{8}} \\ \\ [24][\frac{3}{8}] = \frac{72}{8} = 9 \\ \\ 9 = x](https://tex.z-dn.net/?f=24%20%3D%20%5Cfrac%7Bx%7D%7B%5Cfrac%7B3%7D%7B8%7D%7D%20%5C%5C%20%5C%5C%20%5B24%5D%5B%5Cfrac%7B3%7D%7B8%7D%5D%20%3D%20%5Cfrac%7B72%7D%7B8%7D%20%3D%209%20%5C%5C%20%5C%5C%209%20%3D%20x)
I am joyous to assist you anytime.
Answer:
a
The null hypothesis is 
The alternative hypothesis is 
b
The sample proportion is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 546
The number of people that use a laptop overnight is 
The population proportion is 
Generally
The null hypothesis is 
The alternative hypothesis is 
Gnerally the sample proportion is mathematically represented as

=> 
=> 