X={15,12}
Y={12,15,2}

Which of the following is the set X\Y?

Landon is entering the science fair. he has a budget of $115. he has spent 20 percent of the money on new materials. how much does landon have left to spend?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg