my grades not looking to well if you guys can help me with some problems i will give points and brainliest i need this problem and a few more done

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3