Mrs. Kemp began the school year with 20 students in her kindergarten class. She had 23 students at the end of the year. What was the percent of increase in the number of students from the beginning of the year to the end of the year?

What is the volume of this square pyramid?

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

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?