Leave answers in scientific notation. you

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?

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.