What is equivelent to 16/32

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

What is the measure of sty in oo below? 130 310 230 50

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before