What is the average rate, in m/s, at which these 6 dolphins swam during this observation? i know the answer is 64 but i wanna know how to do it.

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Use sigma notation to represent the following series for 9 terms.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.