This is a picture of a square pyramid and the net for the square pyramid. what is the surface area of the square pyramid? a.) 108 ft^2b.) 152 ft^2c.) 192 ft^2d.) 240 ft^2

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