Marianne completed 2/10 and Arlene 3/10 so that’s 5/10 which means you and Tyler did 5/10 if you divide that by 2 it’s 5/20 I think but I don’t really understand as the possible answers aren’t fractions? Hopefully that’s right haha
Y is same as the missing angle, the triangle need to equal to 180 so if you add 20 to 60 it equal to 80 use 180 to subtract to 80 you will get the missing x, x=80