Choose all the expressions that have 23 as a product. A. 45×56
B. 78×910
C. 13×23
D. 34×712
E. 67×79

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