If x = 19 and y = 8, find y when x = 38

Which of the following is the sum of 3 1/6 + 6 3/8?

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

What is the equation of the parabola with focus (-1,-1) and directrix y=1?