If Ella thinks the length of a segment is √8, why would Isabel think it is 2 *√2?

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?