Interpreting "At least"

Q. Janifer wants to top his class in maths. To achieve this, he must obtain at least 45 marks out of 50. Assuming Janifer scores $J$ marks in this test, which of the following inequalities represents Janifer's score in order to top his class?

1. $J>45$
2. $J=45$
3. $J\ge 45$

Q. Eva has at least 200 followers on social media. Which of the following value(s) for the number of followers can be true?

1. 200
2. 211
3. 199
4. 201

Q. Select the correct representation of a number $y$ which is at least $-8$.

1. 
2. 
3. 
4. 

Q. Eva has saved her pocket money for buying clothes that will cost at least $\$15$. What is least amount of money with which she can buy the clothes?

1. $\$15$.
   
2. $\$16$
   
3. $\$17$
   
4. $\$14$
   

Q. Which of the following represents the number line of $\text{x}$, where $\text{x}$ is at least -2?

1. 
2. 
3. 
4. 

Q. For NASA's upcoming mission, the age criteria for the astronauts is: "At least 21 years of age but less than 40 years of age". Which of the following is the right compound inequality for the age criteria?

1. $21<AGE<40$
2. $21\le AGE\le 40$
3. $21<AGE\le 40$
4. $21\le AGE<40$

Q. A number $x$ is such that $x$ is at least $2$, but not more than $5$, then .

1. $2\le z\le 5$
2. $2<z<5$
3. $2\le z<5$