ANSWER QUICKLY what are 2 things you are allowed to assume for proofs if the picture show for congruency

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.

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