Kristian buys an outfit at Tilly's. When Kristian looks at the receipt, they see that the pants, shirt and jacket cost a total of $126.55, but the total on their receipt was $137.62. The difference must be the tax. What percent of tax did Kristian pay?

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.