Kenya went to the convenience store to buy some snacks. She spent a total of $13.50 on soda and candy. She bought one soda for $3.50 and 4 candy bars. Write and solve an equation to show how much each candy bar cost.

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.