Adjust the equation so the line passes through the points

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

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

87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points i've gotten this quarter. what's my final grade?