Solved the even palindrome of PDA in automata theory?

Who founded the square reciprocal? What grade is 40 out of 60? How many times does 12 go into 130? What the volume of a sphere with a radius of 16? 24.2 is what percent of 110? What function does the slope of a line model? What is 6 over 10 minus 1 over 5? How do you write 707070705 in words? How do you convert 15.651 to fraction notation over 1000? How many hundreds are in 7 thousands? How many gallons of gas are burned in 175 miles? What is the equation for converting cubic inches to cubic yards? What is the product of three fourths and four thirds? What 7 coins equal 1.15? Give an example of a situation where a large surface area is used to reduce pressure? Sum of angles in a polygon? When and why is scientific notation used? How much percent is it if you got 31 out of 40? Is there such thing as a wunderwaffle dg-2? 252 plus x equals 500 what is x?