I am not sure if my son got the first answers right and he is stuck on the last three. The teacher did not provide good instructions. Can anyone help us out? Thank you.

What is the solution to the equation in the & show work i’m very

Find the distance between the point (-3,-4), and (see the picture below)

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?