I am totally stuck on this section

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

X-intercept=-5 y-intercept=2 the equation of the line is

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?