What is the median of a set of numbers if the sum of the first three numbers is 15, the sum of the last three numbers is 25, and there are seven numbers in total?
+
Find the length of the adjacent side of a right triangle with a hypotenuse of 10 and an angle of 30 degrees.
+
What is the result of adding 79, subtracting 35, multiplying by 4, and dividing by 2?