What is the answer to 6 x 2 + 18 x 2 -3 x 2?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

What makes a trapezoid an isosceles trapezoid?

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30