It is cheaper to have the monthly membership for 7 months, after that it costs more
Given the equation :

Let: y = sin x
So,

the given equation will be:

Solve for y, take 3y as a common:

so,

Note: the range of sine function is [ -1, 1]
So, sin x = 2 ( is rejected)
So, the answer will be: x ={ 0 , pi }
Depending on what you’ve learned make a question about your opinion.
City A is 25% less than population of city B. So city A's population is 75% of city B
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<u>Solution:</u></h3>
Given that City A is 25% less than population of city B
To find: city A's population is what % of city B
From given information,
City A is 25% less than population of city B
A = B - 25% of B
So we can write as,

A = 0.75B can be written as,

city A = 75 % of City B
Thus city A's population is 75% of city B
Answer:
1. 4n+2
2. 2n+2
3. 5n-3
4. 4n+1
5. 3n
That's all I can work out I'm sorry