Mee im dieing i need i'm very stupid and idk these things and if u could explain to me how i can add fractions

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

What percent of the circle below is shaded?