1.
If (4 # 2 = 14) and (2 # 3 = 6), what can replace (a # b)?
2.
In a rectangular coordinate system, what is the square root of the area of a trapezoid whose vertices have the coordinates (2, -2), (2, 3), (20, 2), (20, -2)?
3.
If the least common multiple of two prime numbers x and y is 10, where x > y, then the value of 2x + y is