Please somebody help me with this. I asked previously but nobody gave me an answer. Also please show working out if you’re able to:

A spinner is divided into 18 equal sections. Answer the following:

How many sections need to be shaded blue so that P(blue) = 1/3?

How many sections need to be shaded yellow so that P(yellow) = 1/2?

What multiplys to be 1 but adds up to be 4

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?

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes