Percents and fractions

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

2,10,-50 next two numbers geometric sequence

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