The best word to replace "have" is the word "manage".
<h3>What is an effective word?</h3>
A word is considered effective/ineffective depending on whether the word transmits the author's message. In the case of Nancy, she wants to show students struggle as they deal with classes, homework, and extracurricular activities.
<h3>How to replace the word "have"?</h3>
The word "have" is ineffective because it does not completely show how difficult the situation is for students. One word that can show this struggle is "manage" because this emphasizes Nancy's point of view.
Note: This question is incomplete because the text and options are missing; here are the missing sections:
Four Days Is Enough
(1) Students, are you having a difficult time completing all the activities in your schedule? (2) Teachers, are you exhausted from nonstop work? (3) You are not alone. (4) Every day in schools across the nation, teens have challenging classes, hours of homework, and extracurricular activities such as sports and music.
Options:
A) Carry
B) Accept
C)Manage
D)Enroll
Learn more about words in: brainly.com/question/28611
Answer:
I like cake! Lets goooooooo
To study, and build on your driving skills
Answer:
The additional words is 
Explanation:
Given

Required
Determine the additional words; i.e. 
From the given parameters, we have that;
B is a function of n
Such that;

To calculate
, we simply substitute n + 1 for n


Applying laws of indices



Calculating Additional Binary Code;

Substitute values for B(n + 1) and B(n)

Express
as 

Express 1 as 

Factorize




Hence, the additional words is 