Can someone make this into a compound inequality? Ana wants to find her test average for her pre-algebra class. The scores that she got on her tests were 71, 76, 80, and 81. What does Ana need to score on her next test if she wants her average score to be between 75 and 80?

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music.they were asked how they like three types of music: rock, country western and jazz.the results are summarized below: no one dislikes all three types of music.six like all three types of music.eleven don’t like country western.sixteen like jazz.three like country western and jazz, but not rock.six don’t like rock.eight like rock and country western.seven don’t like jazz.how many students were surveyed?