Can a variable be fixed ?

Yes

Step-by-step explanation:

A “fixed variable” is one that is assumed to be measured without error. It is also assumed that the values of a fixed variable in one study are the same as the values of the fixed variable in another study. ... Most of the time in ANOVA and regression analysis we assume the independent variables are fixed.

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice