. Which pair of angles are congruent? *
7
8X6
5
a. 8 and 7
b. 8 and 5
c. 5 and 6
d. 7 and 5

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