Each day that Kevin rides the train to work, he pays $2.50 each way. If Kevin takes the train to work and back 3 times, which amount represents the change in his money?

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle

Out of five men and five women, we form a committee consisting of four different people. assuming that each committee of size four is equally likely, find the probabilities of the following events: 1. the committee consists of two men and two women 2. the committee has more women than men. 3. the committee has at least one man. for the remainder of the problem assume that alice and bob are among the ten people being considered. 4. both alice and bob are members of the committee.