PLEASE HELP ASAP it is my homework

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)