Write an inequality to represent to represent the following question.

1.)A survey shows that senior citizens have a higher risk in Covid 19 virus than young people.

Let x be the senior citizens and y be the young people

2.) there are at least 40 student in one class.

Let x be the number of student

3.) There are at least 100 face masks to make to donate for the victims of typhoon

let x be the number of face mask

thank u po​