Can someone me solve this : at a store, 2 pillows and 3 pillow cases together cost $73.08. the total cost of 3 pillows and 4 sheets is $120.82. if the price of the pillows is 3 times as much as the price of a pillow case, what is the total cost of 5 pillows and 7 sheets?

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.